Question

If P =2-a prove that a^3+ 6ap+ P - 8 = 0

Answer 1

Step-by-step explanation:

p(x)=a^3+6ap+P-8

put p=-2

a^3+6a(2-a)+2-a-8

a^3+12a-6a^2+2-a-8

a^3-6a^2-14a-6