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OpenStudy (anonymous):
Find the product of (3x + 7y)(3x − 7y)? Do i foil with this?
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thomaster (thomaster):
yes just foil it :)
OpenStudy (anonymous):
okay thank you
thomaster (thomaster):
Did you get the answer?
OpenStudy (anonymous):
(9x^2+49y^2)?
thomaster (thomaster):
\(\large +7y*-7y=-49y^2\) So not +49y^2
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OpenStudy (anonymous):
ah thank you kindly :)
thomaster (thomaster):
you're welcome :)
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