Question

When (x³ + ax² + 3x + 2) is divided by (x+1) the remainder is zero What is the value of a ? *

Answer 1

Answer:

a=1

Step-by-step explanation:

here x+1 = 0

then x = -1

p(x) = x3 + ax2 + 3x +2

p(-1) = (-1)×3 + a (-1)×2 +3×(-1) +2

p(-1) = -3 - 2a -3 +2

p(-1) = -2a + 2

here, -2a + 2 = 0

2 = 2a

a = 1 (answer)