Question

15. If one root of the equation 2x*x + kx + 4 = 0 is 2 what is the value of k?​

Answer 1

Answer:

OK wait.................... I will tell.

Answer 2

Answer:

K= -6

Step-by-step explanation:

let, p(x)=2x^2+kx+4

given,x, or the root is 2.

then, by SSt x=2 in p(x,)

2(2)^2 + K(2) + 4=0

2(4)+ 2K + 4=0

12+2K=0

2K= -12

K=-12/2

K= -6