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OpenStudy (anonymous):
multiply polynomials (3x^2-11)(3x^2+11)
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OpenStudy (cwrw238):
(3x^2)^2 - 11^2 -11*3x^2 + 11*3x^2 - simplify
OpenStudy (anonymous):
81x^-121-99+99?
OpenStudy (lgbasallote):
close..what is -99 + 99?
OpenStudy (anonymous):
its zero
OpenStudy (lgbasallote):
so...what would the final answer be?
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OpenStudy (cwrw238):
right but 81 is incorrect
OpenStudy (anonymous):
81x^2-121 is that correct
OpenStudy (lgbasallote):
it is
OpenStudy (anonymous):
thank you very much
OpenStudy (lgbasallote):
you're welcome :)
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