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

A

B

(d) -5

24 18 LTE2

D​

Answer 1

Answer:

(b)-10

please branlist answer

Answer 2

Correct option is (b) -10

2 is a zero of x  

2

+3x+k.

Thus, (2)  

2

+3(2)+k=0

k+10=0

k=−10