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OpenStudy (anonymous):
27x^3-64 ... factor
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OpenStudy (anonymous):
(3x-4)(9x^2+12x+16)
OpenStudy (anonymous):
what did you factor out? @sam5589
OpenStudy (anonymous):
its just an formula that a^3-b^3= (a-b)(a^2+ab+b^2) a^3+b^3= (a+b)(a^2-ab+b^2)
OpenStudy (anonymous):
so compare it with a^3-b^3
OpenStudy (anonymous):
Thank you!! do you know what factor pattern is used? @sam5589
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OpenStudy (anonymous):
I think its difference of cubes
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