Question about Casio fx-300ES Calculator

# Is my fx-300 capable of factoring trinomials?

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### k24674

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Sorry, but no! it is not capable of factoring anything. It can however solve for the roots of a polynomial equation.Write your polynomial as P(X)= a(X² +(b/a)X+c/a) =0. Use the calculator to solve the polynomial equation X² +(b/a)X+c/a =0 and find the roots X1, and X2. You will then be able to write the original polynomial as P(X)=a(X-X1)(X-X2). Beware that by using the calculator, the values of the roots are approximate.

Posted on Mar 18, 2011

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This is a scientific calculator that can perform many operations on numbers but not on letter symbols. It does not have a Computer Algebra System.

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The TI 86 calculator does not manipulate algebraic expressions. If does not have a Computer Algebra System or CAS. Try the TI 89 Titanium, TI92/92PLUS, Voyage 200 PLT, TI Nspire CAS, TI Nspire CX CAS. In Casios you have the ClassPad series (300, 300Plus, 330 Plus and the latest 400. The ClassPad 400 has a color screen. It is also orientable portrait or landscape. Other Casios are the Algebra FX 2 and 2, and the FX 9860 G Plus/ SD. In HP you have HP 50G, HP49C, HP49G+.

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### Prime factorization using Casio FX-9860G Graphic Calculator

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Jul 30, 2011 | Casio FX-9860G Graphic Calculator

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### I want to know if you can factor trinomials on ti-84 plus silver edition

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1 Answer

### I don't have a mechanical problem with the calculator, but I have a question. Will my Casio factor quadratic trinomials?

Natively, the calculator cannot factor polynomials because it does not have a Computer Algebra System or (CAS). You can however find the roots of the polynomial equation P(x)=0 and factor approximately.

On the Internet, there is a program which you can download and transfer to your calculator. Here is the link (the page is in French).

Dec 09, 2010 | Casio FX-9750GPlus Calculator

1 Answer

### How to you factor trinomials

The short story is that this calculator does have a computer algebra system or CAS and thus cannot factor polynomials with arbitrary (unknown) coefficients or known coefficients.
However if the coefficients are given you can ,if you are willing to travel that way, factor approximately a polynomial P(x).
Basically, the idea is that any polynomial P(X) of degree n can be written in the factored form (X-x_1)(X-x_2)...(X-x_n), where x_1, x_2, x_3,...x_n are the roots (real or complex) of the equation P(X)=0.

The procedure ( for a 3rd degree polynomial) is as follows:
If you want to factor a cubic polynomial P3(X) = aX^3 bX^2 cX d , you write the corresponding cubic equation as aX^3 bX^2 cX d =0 , then you divide all terms of the equation by a to obtain

X^3 (b/a)X^2 (c/a)X (d/a)=0.

You use the calculator to solve (approximately) this equation.
Suppose you find the 3 roots X1,X2,and X3. Then the polynomial X^3 (b/a)X^2 (c/a)X (d/a) can be cast in the factored form (X-X1)(X-X2)(X-X3) and the original polynomial P3(X) can be written as

P3(X) = a*(X-X1)(X-X2)(X-X3)

You can handle the quadratic polynomial the same way.
P2(X) =a*(X-X1)(X-X2) where X1, X2 are the two real roots.

Sep 11, 2010 | Casio FX-9750GPlus Calculator

1 Answer

### Can i solve an equation of second degree(like X^2+2X+1) with Casio FX-7400G Plus ? If so how?

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.
1. Graph the function Y=f(X)
2. Use the trace function to locate the point(s) where the function vanishes (has value Zero)
See the screen capture for an example.

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

1 Answer

### How do you factor a trinomial on a Casio 9750Gii. Example problem: 6 + 23k + 7k2

You cannot factor a polynomial with the help of this calculator. It does not have a Computer Algebra System or CAS. You can factor it approximately.
1. You can however rewrite the equation 7k^2+23k+6=0 in the canonical form X^2+ (23/7)X+(6/7)=0
2. Calculate its discriminant Delta= (23/7)^2-4*(6/7), which is positive, meaning that real solutions exist.
3. Calculate the two roots x1 and x2 (approximately).
4. The polynomial can be factored as (X-x1)(X-x2)

May 05, 2010 | Casio FX-9750GPlus Calculator

1 Answer

### Can i solve an equation of second degree(like X^2+2X+1) with Casio FX-7400G Plus ? If so, how?

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.
1. Graph the function Y=f(X)
2. Use the trace function to locate the point(s) where the function vanishes (has value Zero)
See the screen capture for an example.

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

1 Answer

### Will my casio fx 300ms factor

Hello,
The FX-300MS cannot handle symbolic algebra. It cruches numbers but does manipulate litteral expressions. Sorry, it does not factor algebraic expressions.
Hope it helps.

Apr 08, 2009 | Casio FX-300MSPlus Calculator

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