Question

Can anyone tell me this answer and explain plz❤️

Answer 1

Answer:

The expressions are -x² - 9x - 9.

Step-by-step explanation:

First, you have to expand the expressions :

$- 2(4 {x}^{2} + 6) + (7 {x}^{2} - 9x + 3)$

$= - 8 {x}^{2} - 12 + 7 {x}^{2} - 9x + 3$

Next, you have to collect like terms :

$- 8 {x}^{2} + 7 {x}^{2} - 9x - 12 + 3$

$= - {x}^{2} - 9x - 9$

Answer 2

I need to have these points