Question

Which of the following polynomials has (x+1) as a factor? (a) x⁴ + x³ + x² + x + 1 (b) x³ + x² + x + 1 (c) x³ + 2x² + 2x + 1 (d) x⁴ + 3x³ + 3x² + x + 1​

Answer 1

ans) B

Explanation

(x+1) =0

x= -1

p(x)=x³+ x²+ x+ 1

p(-1)=(-1)³+ (-1)²+ (-1) + 1

= -1 +1 -1 +1

= 0