Factor a^3-2a^2+5^a, x^4y-4x^2y^2 +5xy^ (Terribly confused)  TOPIC_SOLVED

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Factor a^3-2a^2+5^a, x^4y-4x^2y^2 +5xy^ (Terribly confused)

Postby PMR on Sun Jan 11, 2009 2:52 am

I'm having problems factoring the following equations.

for example a^3-2a^2+5^a

x^4y-4x^2y^2 +5xy^

I don't want the answer, I just need to know how to do it
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Postby stapel_eliz on Sun Jan 11, 2009 12:45 pm

PMR wrote:a^3-2a^2+5^a

I will guess that this expression is meant to be "a3 - 2a2 + 5a"...? If so, then the first step is to take the common factor out front.

. . . . .Simple Factoring

Then you need to try to factor the resulting quadratic, a2 - 2a + 5.

. . . . .Factoring Quadratics

(It's prime, actually, but you probably need to show and state that fact for your answer to be correct.)

PMR wrote:x^4y-4x^2y^2 +5xy^

I'm sorry, but I can't guess what this expression likely is...? The missing exponent at the end leaves too many possibilities. :oops:

Please study the two lessons provided above, and then attempt the exercises. If you get stuck, please reply with a clear listing of your work and reasoning, along with clarification of the second expression.

Thank you! :D

Eliz.
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