Question

Multiple Choice Questions (MCQs)
1. If one zero of a quadratic polynomial x2 + 3x + k is 2, then the value of k =
a. 10
b. – 10
c. 5
d. – 5​

Answer 1

keeping x=2

$2^{2}$+3*2+k=0

4+6+k=0

k=-10

therefore value of k is -10.