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OpenStudy (anonymous):
4x^2 + ___x + 49 fill in the missing term of the perfect square trinomial
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OpenStudy (anonymous):
28
OpenStudy (anonymous):
how'd you get 28?
OpenStudy (anonymous):
(2x+?)(2x+?)=4x^2 + ___x + 49 ?*? =49
OpenStudy (anonymous):
?=7 (2x+7)(2x+7) = 4x^2 + 28x + 49
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