Question

If one zero of the quadratic polynomial x² + 3x + k is 2, then the value of k is
(a) 10
(b) -10
(c) 5
(d) -5​

Answer 1

Answer:

The answer is option B : -10

Answer 2

Step-by-step explanation:

x=2

by putting the value of x

4+6+k=0..... . . ..... because it has zero

10+k=0

k=-10