Question

(x+2)*(x+2)*(x+2)

Answer 1

\(\left(x+2\right)\left(x+2\right)\left(x+2\right)=\left(x+2\right)^3=x^3+6x^2+12x+8\)

Answer 2

\(\left(x+2\right)\left(x+2\right)\left(x+2\right)\\ =\left(x+2\right)^3\)

Answer 3

\(\left(x+2\right)\left(x+2\right)\left(x+2\right)=\left(x+2\right)^3\)

Answer 4

\(=x^3+6x^2+12x+8\)

Answer 5

Ta có: \(\left(x+2\right)\left(x+2\right)\left(x+2\right)\)

= \(\left(x+2\right)^3\)

= \(x^3+3.2x^2+3.2^2x+2^3\)

= \(x^3+6x^2+12x+8\)