what is the solution of (x+7)³ ?
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Answered by
4
X^3+343+3*x*7(x+7) X^3+21x^2+147x+343
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(x+7)^3
=x^3+7^3+3x×7(x+7)
=x^3+343+21x(x+7)
=x^3+343+21x^2+147x
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