Question

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

Answer 1

Step-by-step explanation:

p(x)=x²+3x+k

p(2)=(2)²+3(2)+k

0 =4+6+k

-k=10

k =-10

value of k=-10

so, Option B