Question

(4x^2 -6x +7)+(-19x^2 -15x -18)

Answer 1

`-15x^2-21x-11`

Explanation:

We need to find the value of
`(4x^2 -6x +7)+(-19x^2 -15x -18)`.

We can find it as follows :

`(4x^2 -6x +7)+(-19x^2 -15x -18)=4x^2 -6x +7-19x^2-15x-18\\\\=4x^2-19x^2-6x-15x+7-18\\\\=-15x^2-21x-11`

So, the value of the given expression is equal to
`-15x^2-21x-11`.