Question

Q.5. If one zero of quadratic polynomial x2 + 3x + k is 2, then find the value of k (A) -10 (B)10 (C) 2 (D) -2​

Answer 1

Step-by-step explanation:

put x-2

4+6+k-0

10+k-0

k-10

value of k is 10

Answer 2

Answer:

P(2)=(2)^2+3(2)+k=0

4+6+k=0

10+k=0

K+10=0

K=-10

Hope it helps