Question

Find the value of k, if one zero of the given quadratic polynomial is 2

Answer 1

Given that 2 is a zero of equation x

2

+3x+k=0, thus will satisfy the equation.

2

2

+3×2+k=0

⇒k=−4−6=−10

Answer 2

Answer: 2x^2 + 3x + k = 0

Put X = 2,

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

8 + 6 + k = 0

14 + k = 0

k = -14