Question about Texas Instruments TI-30 XIIS Calculator

How do I enter a quadratic equation in this calculator. I have tried what I wrote down in class. Sometimes it works, but most of the time it doesn't.
Thank you.

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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

• Anonymous Jan 19, 2009

CORRECTION: Testing reveals a problem. correct process below:

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).
A parentheseis also encloses the bottom of the formula (2a or 2x)

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X*x+bx+c=0

Posted on Sep 05, 2008

Ax+by=c

Posted on Jul 31, 2008

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Posted on Jan 02, 2017

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## Related Questions:

The calculator cannot do symbolic algebra. If equation is aX^2+bX+c=0, write it in the form a(X^2+(b/a)X+(c/a))=0 and solve the quadratic equation X^2+(b/a)X+(c/a)=0. Get the approximate roots X1, and X2 (if they exist) and write your original equation in the for
a(X-X1)(X-X2)=0

May 28, 2014 | Casio Office Equipment & Supplies

### 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

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

### How to solve quadratic equation in fx-100ms

See if it has an equation mode, and select quadratic equations. If it has a SOLVE feature, enter equation, provide a guess and solve.

Feb 26, 2013 | Casio Office Equipment & Supplies

### I want to solve an complex equation on casio fx-570 ES Plus

Your scientific calculator is unable to solve complex equation with complex coefficients. You should try to solve by hand directly using the quadratic formula or by factoring the polynomial in z
failing that, another way would be to set z=x+iy, substitute this for z, carry out the algebra and try to separate real and imaginary parts. But your two equations will constitute a system of two quadratic equations. I am not aware of any general method to solve coupled nonlinear equations.
Good luck.

Dec 20, 2012 | Casio FX-115ES Scientific Calculator

### How do i use this for algebra equations, putting in varables and such

If you are just trying to solve a simple quadratic equation by entering coefficients, this calculator does have those features. The TI-83 is a better choice for that kind of function.

Sep 15, 2011 | Texas Instruments TI-30 XIIS Calculator

### How can I compute quadratic equations using fx-300ES?

You cannot solve the quadratic equation with this calculator. It does not have a solve program.

However if you wnat to create a table of values for a function (any type of function that uses the basic scientific function keys ) you use the TABLE Computational Mode.

You press MODE
You select TABLE
You enter a mathematical expression 3X^2-.33X+ 15
You generate the table of values.

Aug 28, 2011 | Casio fx-300ES Calculator

### How to do equations the papers that come with it doesn't explain it very well. Is there someplace where I can get a better explaination?

You can solve equations two ways: The EQN computational mode or the SOLVE application.
IN the EQN mode you can solve linear equations in one, two and three unknowns; the quadratic equation; and the cubic equation.
Enter the EQN mode by following the instructions on the following screen capture. Press 5:EQN

You have three types of equations.

Once you select the type of equations, a template is displayed where you enter the relevant coefficients.

Under each label (a, b, etc. ) enter a coefficient and press ENTER to move to the next. With a cubic equation, or a linear equation in 3 unknowns, you have to use the Right arrow to display the cells where you enter the value of d.
After you input all necessary coefficients press the = sign to get the solution.

To use the SOLVE feature, see the screen capture that follows. It comes from the Casio manual.

Good luck

Jun 24, 2011 | Casio FX-115ES Scientific Calculator

### Can you factor quadratic equations on the Casio fx-11ES? If yes how?

Press MODE 5 to bring up the equation types. Press 3 for the quadratic. Enter the three coefficients. Press = to see the first root. If the display shows x1 then press down to see the other other root. If the display only shows x then that's a double root. Given the two roots x1 and x2, the factors of the quadratic are (x-x1) and (x-x2).

Refer to "Equation Calculations" on page E-55 of the manual and examples #094 and #095 in the appendix for examples of solving quadratic equations. If the you need the manual and/or appendix, you can download them from
http://support.casio.com/manualfile.php?rgn=1&cid=004001004

May 11, 2011 | Casio FX-115ES Scientific Calculator

### Want to solve quadratic equations on my casio 3650p super fx

Hello,
In your manual, Appendix Program Library, (Page A1) you have the listing of the problem to solve the quadratic equation. Type it in your calculator and execute it.

Hope it helps.

Aug 13, 2009 | Casio FX-9750GPlus Calculator

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