Question

If one zero of quadratic polynomial x2+3x+k is2,then the value of k is

Answer 1

Hey

Here is your answer,

Given that,

p (x) = x^2 + 3x + k

One of its zero is 2 , substitute the value of x in equation,

x^2 + 3x + k = 0
(2)^2 + 3 x 2 + k = 0
4 + 6 + k = 0
10 + k = 0
k = -10

Hope it helps you!