Question

4

Select the correct answer.
Which expression is equivalent to the given expression?
3x2 + 5x – 7(x2 + 4)
-
O A.
x2 + 28
4
OB. x2 + 4
OC. -4x2 + 5x – 28
ОС
C

Answer 1

C. -4x² + 5x - 28

Explanation:

1. Expand -7(x² + 4):

-7x² - 28

3x² + 5x -7x² - 28

2. Group like terms:

-4x² + 5x -28

hope this helps :)