document.write( "Question 375844: (x+7)^2 \n" ); document.write( "

Algebra.Com's Answer #267280 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "(x+7)^2
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document.write( "(x+7)(x+7)
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document.write( "x^2 + 14x + 49 Note:SUM of the inner product(7x) and the outer product(7x) = 14x\r
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document.write( "Checking our answer
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document.write( "(x+7)(x+7)= x(x+7) + 7(x+7) = x^2 + 7x + 7x + 49 = x^2 +14x + 49
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