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OpenStudy (anonymous):
Factor: 16a2 - 25b2 Edit: I got (4a-5b)(4a+5b) but when I try to check the answer with FOIL I get just 16a^3 and this confuses me. Can someone explain?
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OpenStudy (anonymous):
(4a-5b)(4a+5b)
OpenStudy (anonymous):
Oh, that's what I got. Thanks so much! I'm just confused because I tried to check it with FOIL and it didn't come out right.
OpenStudy (anonymous):
can u give me a medal
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