Tuesday

October 21, 2014

October 21, 2014

Posted by **leah** on Sunday, January 7, 2007 at 5:54pm.

factor

m^6 + n^2

28x^2y^2 - 7x^4

8x^3y^3 +343z^3

thank you so much!!!

For the second one: 28x^2y^2 - 7x^4

Factor out 7x^2: 7x^2(4y^2 - x^2)

Now we try to factor 4y^2 - x^2, which is: (2y + x)(2y - x)

We end up with this: 7x^2(2y + x)(2y - x)

The others cannot be factored any further.

that is true just what mathguru said

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