Question

Prove that x=-1 is a zero of the polynomial p(x) = x³+3x²+3x+1

Answer 1

Step-by-step explanation:

Let x = -1

p(x) = x³+3x²+3x+1

=> p(-1) = (-1)³+ 3(-1)²+3(-1)+1

=> p(-1) = (-1) + 3 + (-3) + 1

=> p(-1) = 0

Hence,Proved.