Question

1) (x+2) ³
pls write the steps and then Answer ☺☺☺​

Answer 1

Answer:

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Step-by-step explanation:

FORMULA:

We are aware of the identity that

(a + b)³ = a³ + 3a²b + 3ab² + b³

EVALUATION

${(x + 2)}^{3} \\ \\ = {x}^{3} + 3 {x}^{2} \times 2 + 3 \times x \times {2}^{2} + {2}^{3} \\ \\ = x {}^{3} + 6x {}^{2} + 12x + 8$

∴ (x + 2)³ = x³ + 6x² + 12x + 8

Answer 2

Step-by-step explanation:

(A+B)3 = A3+B3+3AB(A+B)

$( {x + 2})^{3} = {x}^{3} + {2}^{3} + 3 \times x \times 2(x + 2)$

${x}^{3} + 8 + 6x(x + 2)$

${x}^{3} + 8 + {6x}^{2} + 12x$

${x}^{3} + {6x}^{2} + 12x + 8$

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