Question

(x-7)(x²+x)=???

Answer 1

`(x-7)(x^2+x)`

`= x(x^2+x) -7(x^2 +x)`

`= x^3 + x^2 - 7x^2 - 7x`

`= x^3 + -6x^2 -7x`

Answer 2

`x(x-7)(x+1)`

`= x(x^2 - 6x - 7)`

`= x^3 - 6x^2 - 7x`