Question

2) Find the remainder when x3 + x2 - 20 is divided by

(x + 2) by using remainder theorem.
{ANS: R = -24}​

Answer 1

See explanation.

Step-by-step explanation:

Remainder theorem: The remainder of f(x)/(x-a)=f(a)

So, plug in the number: f(x)=x3+x2-20, a= -2, f(a)=-2^3+ -2^2 -20= -8+4-20= -24