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Simplify fully: (2x+3)^2 - (2x-3)^2

Simplify fully: (2x+3)^2 - (2x-3)^2
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3 votes
Simplify fully: (2x+3)^2 - (2x-3)^2

User Donentolon
by
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1 Answer

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(2x+3)^2 - (2x-3)^2=(2x+3)*(2x+3)-(2x-3)*(2x-3)=(4x^2+12x+9)-(4x^2-12x+9)=4x^2+12x+9-4x^2+12x-9=24x
So the answer is 24x
User Paul Ryan
by
9.1k points
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