Question

find the value of p and q so that x^4+px^3+2x^2-3x+q is divisible by x^2-1

plzz answer it it's urgent.

Answer 1

if x^2-1 divides the given polynomial that is (x-1)(x+1) divides the polynomial , therefore one zero is -1 and another is +1. Now simply substitute +1 and-1 in the polynomial to find two linear equations and solve them further ,p is 3 and q is -3....