Question

Please help ^^
Homework dued in 10min

Answer 1

`\sf x^3+6x^2+12x+8`

Explanation:

`\rightarrow \sf \left(x+2\right)^3`

apply cubic formula:
`\bold{ \left(a+b\right)^3=a^3+3a^2b+3ab^2+b^3}`

`\rightarrow \sf x^3+3x^2 * \:2+3x * \:2^2+2^3`

`\rightarrow \sf x^3+6x^2+12x+8`