Question about Office Equipment & Supplies

1 Answer

How do i enter a quadratic formula into this model calculator ?

Posted by Anonymous on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Fixya-Fanatic:

    Visited the website for 90 consecutive days.

  • Master
  • 590 Answers

I don't have the specific model of calculator that you referenced, but hope to give you guidance that will work on any calculator.

As an example, let's find the roots of 2x^2 - 10x + 12
In this case a=2 b=-10 and c=12.

(-(-10)+ sqrt ((-10)^2 -(4 * 2 * 12)))/(2*2)

and to find the other root,

(-(-10) - sqrt ((-10)^2 -(4 * 2 * 12)))/(2*2)

All the brackets may be necessary to make sure the calculator does the calculation correctly.

Take care,

Paul

Posted on Apr 04, 2015

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad
Candyhelp
  • 136 Answers

SOURCE: TI30Xa

pressing e return to ==(7=*)

Posted on Apr 11, 2008

daviga1
  • 7 Answers

SOURCE: Re: Quadratic equation

I like to take the a, b, and c values and store them as variables  -  a->x b->y c->z
then run: (- y + SQRT ( y^2-(4xz) ) )/2x     AND  (- y - SQRT ( y^2-(4xz) ) )/2x

the parentheses may be a bit confusing - 1 holds the whole top of the formula to be divided together, one holds everything under the square root, one holds the -4ac (or -4xz).
That ought to cover it.

Posted on Jan 19, 2009

  • 7993 Answers

SOURCE: How do I enter a quadratic equation into my calculator TI 89?

Hello,
What do you want to do with it? If you want just to enter it, you do so on the command line.
Here are exemples of solutions
Under [Mode][F2] exact/aprox set to exact
solve(x^2+x-5=0,x) finds the exact solutions the top ones

b255a8b.jpg
Under [MODE][F2] Exact/Aprox set to Approximate you get approximate numerical solutions, the bottom ones.
There is another command nSolve( which solves numerically for an equation. You can specify a range of values where solution is suspected to be.

Hope it helps

Posted on Sep 13, 2009

  • 7993 Answers

SOURCE: how to solve a quadratic formula using a casio

Hello,
The calculator does not have a solve program, but you can still use it to solve the quadratic equation with a little effort. If you know the therory skip toward the end.

Let aX^2+bX+C=0
1. First calculate the discriminant usually called Delta and given by
Delta =b^2 -4*a*c store the value in the variable D
If Delta is positive you have two roots X1 and X2 given by
X1=(-b+square root of Delta)/(2*a)
X2=(-b- square root of Delta)/(2*a)

If Delta is equal to 0, X1=X2=-b/(2*a)
If Delta i negative, no real solutions exist

You only solve if Delta is positive or equal to 0.

Putting in the values of a, b, and c
value of a (put you number) [SHIFT][STO] A
value of b (put your value) [SHIFT][STO] B
value of c (put you value) [SHIF][STO] C

[ALPHA] B [X^2] -4[x][ALPHA] A [x][ALPHA] C [=]
Value of delta is displayed. If it is positive, you store its square root in D

[Square root] [ANS] [SHIFT][STO] D ;

Calculate 1/(2*a) and store in variable F
1./(2[x] ALPHA A) [SHIFT][STO] F

To obtain X1
[ALPHA] F [x] ( (-) ALPHA B + ALPHA D ) [=]
To obtain X2
[ALPHA] F [x] ( (-) ALPHA B - ALPHA D ) [=]

Be careful: the (-) is the change sign not the regular minus sign.

Hope it helps.

Posted on Sep 24, 2009

  • 457 Answers

SOURCE: How do I enter (simple step-by-step please) the

The TI-30XA does not offer any symbolic algebra or equation solving functions. You will need to do some work on paper. However, its not super difficult.

Solving quadratic equations (finding the roots) involve three steps:

  1. Simplify the equation and bring into the normalized form x² + px + q = 0.
  2. Determine the discriminant D = p² - 4q and check if there are two, one or no solutions at all.
  3. Calculate the root(s), if any.
Lets do (1) with an example, 3x - 2 = ( 6 + x ) / x.
mib8888_37.gif

You should exercise this simplification with different examples until you can do it in your sleep. The goal is to get a form x² + px + q = 0, where in the above example case, p = -1 and q = -2.

Now, use the memory places #0 and #1 to store p and q, as in:

-1 [STO] 0
-2 [STO] 1

Next, you should determine the discriminant D = p² - 4q of the equation using your TI-30XA calculator. Having put the two values into the memory comes in handy here:

[RCL] 0 [x²] [-] 4 [x] [RCL] 1 [=] [STO] 2

Note, we put D into memory place #2, we will need it again later.

Now check the displayed value D:
  • if D
  • if D = 0, there is exactly one solution: -p / 2. Key in [RCL] 0 [+=-] [÷] 2 [=] and the displayed value is the only solution to the quadratic equation.
  • if D > 0, there are exactly two solutions:
    mib8888_39.gif
    Key in [RCL] 0 [+=-] [+] [RCL] 2 [mib8888_40.gif] [=] [÷] 2 [=] to get the first root, and
    [RCL] 0 [+=-] [-] [RCL] 2 [mib8888_41.gif] [=] [÷] 2 [=] for the second root.
In the example, the discriminant turns out to be 9, which is greater than 0, so there are two different roots. Following the key sequences you should get the roots x1 = -1 and x2 = +2. You can double check by calculating
mib8888_42.gif
and you'll receive the original, normalized equation.

As an exercise for your understanding: you can save a few keystrokes by saving -p to memory #0 instead of p. Try to figure out why this helps.

Posted on Feb 12, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How am i supposed to solve a quadratic equation ?


Use the quadratic formula, or factor the quadratic polynomial. Once factored into a product of two first degree binomials, the roots are obtained by setting (in TURN) each binomial factor equal to zero.

May 02, 2014 | Casio fx-300ES Calculator

1 Answer

How to solve quadratic equations on fx82ms calculator


You can do it the same way people did it before calculators were invented. Just use the quadratic formula: http://en.wikipedia.org/wiki/Quadratic_formula. Some sophisticated calculators have generalized equation solvers that can handle equations much more complicated than the quadratic, but the fx-82 isn't one of them.

Nov 06, 2013 | Casio FX82MS Scientific Calculator

1 Answer

How to solve quadratic equatons on fx82ms


You can do it the same way people did it before calculators were invented. Just use the quadratic formula: http://en.wikipedia.org/wiki/Quadratic_formula.

Nov 06, 2013 | Casio FX-82MS Scientific Calculator

1 Answer

Quadratic equation fx-82ms


You can do it the same way people did it before calculators were invented. Just use the quadratic formula: http://en.wikipedia.org/wiki/Quadratic_formula, and let the calculator handle the arithmetic. Some sophisticated calculators have generalized equation solvers that can handle equations much more complicated than the quadratic, but the fx-82 isn't one of them.

Nov 06, 2013 | Casio FX82MS Scientific Calculator

1 Answer

How can i solve quadratic equation (aX^2+bX+c=0) with my BA II plus texas instrument calculator?


The BAIIPlus doesn't have anything specifically for solving quadratic equations. You can simply plug the coefficients a, b, and c into the quadratic formula.

Oct 03, 2013 | Texas Instruments Office Equipment &...

1 Answer

How do i factor


This calculator is unable to factor a polynomial expression.
In general there are a few factoring methods
  1. Factor by grouping terms
  2. Factor by completing the square (quadratic polynomial)
  3. Factor by finding two integers such their sum is equal to the coefficient of the middle term, and their product is equal to the third (constant term). This is valid for a quadratic polynomial where the leading coefficient (of the x^2 term) is equal to 1. X^2+SX+P
A cubic equation can be solved algebraically, although two solutions may be complex. Use the Cardano formulas. A quartic equation can be solved by the formulas for the quadratic equation, if you transform the quartic equation to look like A(X^2)^2 + B(X^2) +C=0

Jul 31, 2012 | Casio FX-115ES Scientific Calculator

1 Answer

How to solve polynomials


That depends on the order of the polynomial. If the polynomial is of second order, the quadratic formula will give you its roots. There are similar formulae for third, fourth, and fifth order polynomials, and it has been proven that no such formulae exist for higher-order polynomials.
Some TI calculators have a numerical solver which can produce numerical solutions to arbitrary polynomials. Since you declined to specify the model of your calculator, I'm afraid I can't tell you whether yours has one or not.
If you need further assistance, please reply to this post and be sure to specify the model of your calculator.

Feb 12, 2012 | Texas Instruments Office Equipment &...

2 Answers

How to program the calculator TI-nspire to solve the quadratic formula


Whay would you want to go through the hassle of writing a program to solve to solve a quadratic equation`The calculator has two buit-in command to do just that. It has Solve and cSolve (for complex solutions).

Open a calculator sheet, and on the command line, type in solve(ax^2+bx+c=0, x), press ENTER and wait for the solutions

k24674_48.jpg
k24674_47.jpg

May 10, 2011 | Texas Instruments TI-Nspire Graphic...

1 Answer

Plus or Minus Sign


I'm assuming you want the +/- symbol like you see in the quadratic formula. There is no key to enter this. You will have to enter 2 separate problems. Enter the numbers with the + symbol and then enter the numbers with the - symbol.

Jun 05, 2009 | Texas Instruments TI-84 Plus Calculator

3 Answers

Inputing factors on a casio fx-115es calculator


Unless I am failing to understand your problem, just combine like terms to get:
9x^2+2x+4 and then enter those coefficients into the quadratic solver.
That will get you the two answers -- both of them will be complex.
If you wanted to turn those two answers into factors (complex) of the original equation simply
change the signs on each and put an x in front.
Of course, the quadratic formula would also work.
CG

Apr 17, 2009 | Casio FX-115ES Scientific Calculator

Not finding what you are looking for?
Office Equipment & Supplies Logo

Related Topics:

72 people viewed this question

Ask a Question

Usually answered in minutes!

Top Office Equipment & Supplies Experts

kakima

Level 3 Expert

102366 Answers

jasbo
jasbo

Level 3 Expert

2237 Answers

yadayada
yadayada

Level 3 Expert

76164 Answers

Are you an Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...