Question

using suitable identity, solve the following:. (k+2)^3 please I'll mark you as brainelist​

Answer 1

Step-by-step explanation:

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${(k + 2)}^{3} = (k + 2)( {k}^{2} + 2k + 4)$

${(k + 2)}^{3} = {k}^{3} + 8 + 6 {k}^{2} + 8k$

Answer 2

Answer:

(k^3+6k^2+12k+8)

Step-by-step explanation:

(k+2)^3=?.

since, [(a+b)^3=a^3+b^3+3a^2b+3ab^2].

Now,

(k)^3+(2)^3+3×(k)^2×2+3×k×(2)^2.

k^3+8+6k^2+12k.

(k^3+6k^2+12k+8) is the correct answer.

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