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Mathematics 10 Online
OpenStudy (anonymous):

Factor: (x-7)^3 + (2x+3)^3

OpenStudy (anonymous):

@lgbasallote

OpenStudy (lgbasallote):

here's a hint... \[\huge a^3 + b^3 = (a+b)(a^2 - ab + b^2)\] does that help?

OpenStudy (anonymous):

Oh! yeah...

OpenStudy (lgbasallote):

wonderful. so do you know how to proceed already?

OpenStudy (anonymous):

Yeah. Let's just see if I get it right.

OpenStudy (anonymous):

I got (3x-4) (3x^2-11x -42)

OpenStudy (anonymous):

I messed up calc but it's around there.

OpenStudy (lgbasallote):

let me try wolfram...

OpenStudy (lgbasallote):

http://www.wolframalpha.com/input/?i=%28x-7%29%5E3+%2B+%282x%2B3%29%5E3&dataset= yes you were a bit close

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