If one zero of quadratic polynomial x square minus x minus into 2 plus 2k is 4 find the value of k

If one zero of quadratic polynomial x square minus x minus into 2 plus

1.	If one zero of quadratic polynomial x square minus x minus into 2 plus 2k is 4 find the value of k
Answer» X^2-x-(2+2k)=0(4)^2 - 4-(2+2k)=016-4-2-2k=010-2k=0-2k=-10K=5