Question

Find the remainder when x^3+3x^2+3x+1 is divided by the following linear polynomials 5+2x
​

Answer 1

Answer:

5+2x = 0

so x = -5/2

now put this value in the polynomial

(-5/2)^3 + 3(-5/2)^2 +3(-5/2)+1

-125/8 + 3(25/4) -15/2 +1

-125/8 + 75/4 -15/2 +1

-27/8