Question

1. -2x(x+3)-(x+1)(x-2) =

Answer 1

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

Explanation:

Given

`-2x(x + 3) - (x+1)(x - 2)`

Required

Solve

Open brackets

`-2x^2 -6x - (x^2-2x + x - 2)`

`-2x^2 -6x - x^2-2x + x + 2`

Collect like terms

`- x^2-2x^2 -6x -2x + x + 2`

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