Question

Find a if x+2 is a factor of 4xpower3 -6x power2 +8a-10​ anyone please tell it is so important

Answer 1

Step-by-step explanation:

if x + 2 is a factor of 4x³ - 6x² + 8a - 10

then at x = -2

the polynomial would become zero

4(-2)³ -6(-2)² + 8a - 10 = 0

-32 -24 + 8a - 10 = 0

8a = 66

a = 66/8 = 8.25