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OpenStudy (anonymous):
(7x^2+10y^2)^2
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OpenStudy (hoblos):
apply (a+b)^2 = a^2 + 2ab + b^2
OpenStudy (anonymous):
so: 49x^4+100y^4 then what?
OpenStudy (hoblos):
you are missing the term 2ab
OpenStudy (anonymous):
49x^2+140xy+100x^2 ?
OpenStudy (hoblos):
correct
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OpenStudy (anonymous):
thank you!
OpenStudy (hoblos):
any time :)
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