Question

What is the simplified expression for the expression below?

–1(2x + 3) – 2(x – 1)

–4x + 1
–4x – 2
–4x + 2
–4x – 1

Answer 1

-1(2x+3)-2(x-1)
-2x-3-2x+2
-4x-1

Answer 2

The correct option is 4.

Explanation:

The given expression is

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

Using distributive property we get

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

On further simplification we get

`-2x-3-2x+2`

Combined like terms.

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

`(-4x)+(-1)`

`-4x-1`

The simplified form of given expression is –4x – 1.

Therefore the correct option is 4.