Question

If one zero of the quadratic equation x square +3x +k is 2, then the value of k is: (a) 10 (b)-10 (c) 5 (d)-5

Answer 1

Answer:

Value of k is -10

Step-by-step explanation:

Let p(x)=x²+3x+k

Given one zero of polynomial is 2

Then p(2)=0

2²+3(2)+k=0

4+6+k=0

k=-10