February 23, 2017

Homework Help: Algebra

Posted by John on Tuesday, October 30, 2007 at 1:18pm.

Ok I got two I need help with :

1. Factor Completely
7x^2 + 49x + 42
I get 7x^2 + 7x + 42x + 42
then 7x(x+1) but the right side is confusing me. I know it should be (x+6).
So the answer is 7x(x+1)(x+6) But I get 7x(x+1) 7(6x+6). What am I doing wrong?

2.Factor completley:
x^10y^3 - 4x^9y^2 - 21x^8y

Totally consfused on this one.

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