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OpenStudy (anonymous):
-2x(2x+5)^2 ?
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OpenStudy (shamil98):
-2x(2x+5)^2 (-2x)(2x+5)(2x+5) Multiply it out using foil.
OpenStudy (gudden):
first of all solve the bracket with the identity (a+b)^2 = a^2 + b^2 + 2ab.. and then multiply it with - 2x.. and u would get ur answer...:D
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