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OpenStudy (anonymous):
What polynomial identity should be used to prove that 19 = 27 - 8?
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OpenStudy (anonymous):
@hero sorry again but this is my cousin and he needed help
hero (hero):
\(27 = 3^3\) right? \(8 = 2^3\) right? And \(27 - 8 = 3^3 - 2^3\) correct?
OpenStudy (anonymous):
yes
hero (hero):
So what kind of polynomial identity could we use for this?
OpenStudy (anonymous):
difference of cubes?
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hero (hero):
Correct. Great job @xiphoidx
OpenStudy (anonymous):
Omg thanks so much! I was always confused with how to do this @hero
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