Question

how to solve (x+2)³
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Answer 1

Answer:

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Step-by-step explanation:

so here (x+2)³ is in (a+b)³

so we know that

(a+b)³=a³+b³+3a²b+3ab²

thus then accordingly

(x+2)³=x³+(2)³+3x².2+3x.(2)²

=x³+8+6x²+3x.4

=x³+8+12x+6x²

hence

(x+2)³=x³+8+12x+6x²