If 3 is a zero of the polynomial 2x2+x+k, find the value of k.
Given 3 is a zero of the polynomial Putting x=3 Equation becomes 2x2+x+k 2(3)2+3+k 2×9+3+k=0 18+3+k=0 k=−21
If one of the zero of the quadratic polynomial kx2+3x+k is 2 then find the value of k.