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Mathematics 16 Online
OpenStudy (anonymous):

x^3-x^2y-xy^2+y^3

OpenStudy (cwrw238):

what do you want to do? factor this?

OpenStudy (blurbendy):

(x-y)^2(x+y) when simplified.

OpenStudy (anonymous):

yes, but i need to see the steps to understand it

OpenStudy (cwrw238):

you need to look for common factors the first 2 terms = x^2(x - y)

OpenStudy (cwrw238):

and -xy^2 + y^3 = -y^2(x - y)

OpenStudy (cwrw238):

bring these together we get x^2(x - y) - y^2(x - y) do you follow this so far?

OpenStudy (anonymous):

yes, thanks

OpenStudy (anonymous):

do you get (x+y)(x-y)(x-y)?

OpenStudy (cwrw238):

ok so notive that (x-y) is common so we have (x - y) ( x^2 - y^2) now the second parentheses can be factored further (its difference of 2 squares) finally its (x - y)(x - y)(x + y) or (x - y)^2 (x + y)

OpenStudy (cwrw238):

yea you'te right

OpenStudy (anonymous):

can you help me with one more?

OpenStudy (cwrw238):

sorry gotta go now

OpenStudy (anonymous):

thanks anyways

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