When using the factoring function as well as others my calculator is giving answers in terms of y not x?

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Posted on Jan 02, 2017

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Oct 04, 2016 | Casio FX-9750GII Graphing Calculator

Quick-Start Guide
When you enter an expression into the calculator, the calculator will simplify the expression by expanding multiplication and combining like terms. At this point the calculator will attempt to factor the expression by dividing a G C F, and identifying a difference between two squares, or factorable trinomials. Use the following rules to enter expressions into the calculator.
Variables
Any lowercase letter may be used as a variable.
Exponents
Exponents are supported on variables using the ^ (caret) symbol. For example, to express x 2, enter x ^ 2. Note: exponents must be positive integers, no negatives, decimals, or variables. Exponents may not currently be placed on numbers, brackets, or parentheses.
Parentheses and Brackets
Parentheses ( ) and brackets [ ] may be used to group terms as in a standard expression.
Multiplication, Addition, and Subtraction
For addition and subtraction, use the standard + and - symbols respectively. For multiplication, use the * symbol. A * symbol is optional when multiplying a number by a variable. For instance: 2 * x can also be entered as 2x. Similarly, 2 * ( x + 5 ) can also be entered as 2 ( x + 5 ) ; 2 x * ( 5 ) can be entered as 2 x ( 5 ). The * is also optional when multiplying parentheses, example: ( x + 1 ) ( x - 1 ).
Order of Operations
The calculator follows the standard order of operations taught by most algebra books - Parentheses, Exponents, Multiplication and Division, Addition and Subtraction. The only exception is that division is not currently supported; attempts to use the / symbol will result in an error.
Division, Square Root, Radi cals, Fractions
Division, square root, radi cals, and fractions are not supported at this time. A future release will add this functionality.

that's all I can say basically I learned it this way.

that's all I can say basically I learned it this way.

Jul 09, 2015 | Office Equipment & Supplies

What is the question. Your calculator FX-9750 GII does not have a Computer Algebra System or CAS, so you cannot factor a polynomial.

If you want you can try to find the zeros of the polynomial function (the values of x when the function crosses the horizontal axis) either by solving P(x)=0 or by graphing y=P(x).

Once you have the approximate roots x_1, x_2, ...,x_n, you can factor out the coefficient of the leading term (the term with the highest power) and write P(x) =a_n *G(x). here a_n is the coefficient of the leading term.

G(x) can then be written as G(x)=(x-x_1)(x-x_2)*(x=x_3)...(x-x_n)

and the original polynomial will be

P(x)=a_n(x-x_1)(x-x_2)*...*(x-x_n)

Note: Here is an example of P(x) and the corresponding G(x)

P(x)=5x^3+7x^2-13x^+29

P(x)=5**(x^3+ (7/3)*x^2-(13/5)x+29/5)**

G(x)=**x^3+ (7/3)*x^2-(13/5)x+29/5**

You should keep in mind that the roots are in general complex. Not all polynomials are factorisable in the set of Real numbers.

If you want you can try to find the zeros of the polynomial function (the values of x when the function crosses the horizontal axis) either by solving P(x)=0 or by graphing y=P(x).

Once you have the approximate roots x_1, x_2, ...,x_n, you can factor out the coefficient of the leading term (the term with the highest power) and write P(x) =a_n *G(x). here a_n is the coefficient of the leading term.

G(x) can then be written as G(x)=(x-x_1)(x-x_2)*(x=x_3)...(x-x_n)

and the original polynomial will be

P(x)=a_n(x-x_1)(x-x_2)*...*(x-x_n)

Note: Here is an example of P(x) and the corresponding G(x)

P(x)=5x^3+7x^2-13x^+29

P(x)=5

G(x)=

You should keep in mind that the roots are in general complex. Not all polynomials are factorisable in the set of Real numbers.

Oct 06, 2013 | Casio FX9750GII Graphic Calculator

This calculator is unable to factor a polynomial expression.

In general there are a few factoring methods

In general there are a few factoring methods

**Factor by grouping terms****Factor by completing the square**(quadratic polynomial)**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**

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

You are not using the right units. The integrals of functions involving angles (trigonometric functions) that you find in tables and other refrerences are valid only for the natural angle unit which is the radian. With any other angle unit (degree, gradian) there is a scale factor to take into account. That is the factor yoy are complaining about.

If it were not the case, the same integral will have two different values depending on the unit you use: and that cannot be.

If you want the calculator to give you the standard integrals in reference tables you must set the default angle unit to be radian.

Let x_deg be an angle in degrees and x_rad the corresponding value in radians.

180 deg=Pi rad

x_deg/180=x_rad/Pi

x_deg =(180 deg/PI)*x_rad

calculating the differentials of bot sides you obtain

dx_deg= (180/Pi) dx_rad

Similarly, with grads

dx_gr=(200/Pi)*dx_rad

If it were not the case, the same integral will have two different values depending on the unit you use: and that cannot be.

If you want the calculator to give you the standard integrals in reference tables you must set the default angle unit to be radian.

Let x_deg be an angle in degrees and x_rad the corresponding value in radians.

180 deg=Pi rad

x_deg/180=x_rad/Pi

x_deg =(180 deg/PI)*x_rad

calculating the differentials of bot sides you obtain

dx_deg= (180/Pi) dx_rad

Similarly, with grads

dx_gr=(200/Pi)*dx_rad

Sep 20, 2011 | Texas Instruments TI-89 Calculator

Do you really need a calculator to solve a linear equation?

Let us see how to solve it without a calculator.

Remove the parentheses fronm the second term on the left : y-3

Use the distributive property on the last term on the right side -2y-6

Take the term -3 to the right side, changing its sign in the process (becomes +3)

Take the -2y term to the left making it +2y.

3y +2y=18+3-6 or 5y=15 and the answer is straightforward .

As to your Casio FX300ES, it cannot solve equations because it does not have an EQUATION calculation mode. The Casios FX-115ES and FX-991ES have an Equation Mode. If you use any of the two to solve an equation in one variable (linear, quadratic or other) the unknown is taken to be x by default. You would have to change the name of the variable from y to x.

Let us see how to solve it without a calculator.

Remove the parentheses fronm the second term on the left : y-3

Use the distributive property on the last term on the right side -2y-6

Take the term -3 to the right side, changing its sign in the process (becomes +3)

Take the -2y term to the left making it +2y.

3y +2y=18+3-6 or 5y=15 and the answer is straightforward .

As to your Casio FX300ES, it cannot solve equations because it does not have an EQUATION calculation mode. The Casios FX-115ES and FX-991ES have an Equation Mode. If you use any of the two to solve an equation in one variable (linear, quadratic or other) the unknown is taken to be x by default. You would have to change the name of the variable from y to x.

Sep 08, 2011 | Casio fx-300ES Calculator

Sorry but the calculator does not have a solving routine. You can however use the graphing capabilities of the Casio FX-7400GPLUS to solve an equation f(X)=0.

If you were hoping that this calculator would be able to factorize polynomials for your, sorry my friend it cannot.

- Graph the function Y=f(X)
- Use the trace function to locate the point(s) where the function vanishes (has value Zero)

If you were hoping that this calculator would be able to factorize polynomials for your, sorry my friend it cannot.

May 15, 2010 | Casio FX-7400G Plus Calculator

Sorry but the calculator does not have a solving routine. You can
however use the graphing capabilities of the Casio FX-7400GPLUS to solve
an equation f(X)=0.

If you were hoping that this calculator would be able to factorize polynomials for your, sorry my friend it cannot.

- Graph the function Y=f(X)
- Use the trace function to locate the point(s) where the function vanishes (has value Zero)

If you were hoping that this calculator would be able to factorize polynomials for your, sorry my friend it cannot.

Mar 27, 2010 | Casio FX-7400G Plus 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

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

oh yeah, you must've archived x, that is, you put a number onto the x variable so that the calculator calculates the answer for you, and THEN AUTOMATICALLY calculates the answer when x is in terms of that number. I am guessing you accidentally did 10[sto] x at one point. You can simply unarchived the x number and everything will be dandy!

Dec 08, 2007 | Texas Instruments TI-89 Calculator

May 21, 2014 | Texas Instruments TI-89 Calculator

Feb 17, 2014 | Texas Instruments TI-89 Calculator

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