Question

Simplify
3x - 7- (4x^2 - 2x-5)​

Answer 1

For this case we must simplify the following expression:

`3x-7- (4x ^ 2-2x-5)`

According to the law of multiplication signs we have:

`- * + = -\\- * - = +`

So, we have:

`3x-7-4x ^ 2 + 2x + 5 =`

We add similar terms:

`3x + 2x-7 + 5-4x ^ 2 =`

Equal signs are added and the same sign is placed.

Different signs are subtracted and the major sign is placed.

`5x-2-4x ^ 2 =`

We order the expression:

`-4x ^ 2 + 5x-2`

ANswer:

`-4x ^ 2 + 5x-2`