Question

How do you multiply `(x+2)(x-1)`?

Answer 1

`= x^2 +x -2`

Explanation:

`(x+2)(x-1)`

`=color(green)( x xx (x) + x xx (-1)) +color(blue)(2 xx (x) + 2 xx (-1)`

`= x^2 -x +2x -2`

`= x^2 +x -2`