Question

If one root of the quadratic equation , 2x²+kx+6=0 is 2 , then the value of k is

Answer 1

Step-by-step explanation:

the value of k is k=-7 by applying 2inthe place of x

Answer 2

p(x) = 2x²+kx+6 = 0

p(2) = 2×2²+k×2+6

      = 8+2k+6

      = 2k+14

p(2) = 0

2k+14 = 0

2k = -14

k = -7

Value of k = -7

Hope it helps u