Question

Factor x3 + x2 + x + 1 by grouping. What is the resulting expression?

(x2)(x + 1)
(x2 + 1)(x)
(x2 + 1)(x + 1)
(x3 + 1)(x + 1)

Answer 1

(x²+1)(x+1)

Explanation:

(x³+x²)+(x+1)

x²(x+1)+1(x+1)

(x²+1)(x+1)

Answer 2

C- (x2 + 1)(x + 1)

Explanation: