Question

Find all the zeros of the polynomial 4x 4 -20x 3 +23x 2 +5x-6 if two of its zeros are 2 and 3.

Answer 1

if two of its zeros are 2 and 3 , then (x-2) and (x-3) are two factors of the given expression .... now multiply (x-2)*(x-3) ....... u get x^2 - 5x + 6 .... now divide  x^2 - 5x + 6 by the expression in the question .......... whatever quotient u get accordingly factorise it u will get the other 2 zeros