Question

Find the value of ‘a’ if x + a is a factor (zero) of the polynomial 2x2 + 2ax + 10

Answer 1

Answer:

Step-by-step explanation:

By factor theorem

X+a=0

X=-a

Substituting x= -a in2x+2 +2ax+10

P(-a)=2×-a+2+2×a×-a+10

=-2a+2+-2a^2+10

=-2a^2+-2a+12