5. Which expression is a simplified form of (3x2 + 2x - 4) + (-7x2 + 6x - 2)? a 10x2 + 8x - 6
b. -4x2 + 8x - 2
C.-4x2 + 8x + 2
d. -4x2 + 8x - 6

i think it is

option d -4x2 + 8x - 6

(3x2 + 2x - 4) + (-7x2 + 6x - 2)

3x2 + 2x - 4-7x2 + 6x - 2

3x2-7x2 + 2x + 6x- 4 - 2

-4x2 + 8x - 6

d. -4x² + 8x - 6

Step-by-step explanation:

(3x² + 2x - 4) + (-7x² + 6x - 2)

3x² + 2x - 4 - 7x² + 6x - 2

3x² - 7x² + 2x + 6x - 4 - 2

-4x² + 8x - 6

the answer is. -82562234434584

step-by-step explanation:

answer:

a=9

step-by-step explanation: lmk if you need a explanation