Question

Expand. 1) (X + 3)3
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Answer 1

Answer:

I hope

Step-by-step explanation:

(x+3)^3=x^3+3x^2×3+3x×3^2+3^3

=x^3+9x^2+27x^2+27

Answer 2

(x+3)³

Using identity:-

(a+b)³=a³+b³+3a²b+3ab²

(x+3)³=x³+3³+3x²+3(x×3)²

=>x³+27+3x²+(9x)²

=>x³+27+3x²+81x

=>x³+3x²+81x+27

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