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Mathematics 17 Online
OpenStudy (anonymous):

y3 - 27 Factor this expression completely

OpenStudy (anonymous):

First can you write this equation in the form y^3 - a^3 ?

OpenStudy (anonymous):

Any idea ?

OpenStudy (anonymous):

okay 3^3 = --------?

OpenStudy (anonymous):

it's really easy the same thing I did with previous question :)

OpenStudy (anonymous):

formula of \[a ^{3}+b ^{3}\]

OpenStudy (anonymous):

\[= (a+b)(a^{2} −ab+b^{2})\]

OpenStudy (anonymous):

put values and you get your answer :)

OpenStudy (anonymous):

did you get it ?

OpenStudy (anonymous):

\[x^{3}y^{3}+z^{3}\]

OpenStudy (anonymous):

@INarcolepsy I'm solving it here

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

\[(xy + z)(x^{2}y^{2} - xyz + z^{2}) \]

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