Question

2 X square + kx - 6;x=2. find the value of k

Answer 1

Hey !!

Here is your answer !!

2 × ( x )2 + k × x - 6 =0

2 × (2)2 + 2k - 6 =0

8 +2k -6 = 0

2 +2k = 0
k = -2/2

k = -1

Answer 2

Hey user here is ur answer...


$2 {x}^{2} + kx - 6 = 0 \\ by \: putting(x = 2) \\ 2 ({2})^{2} +2k - 6 = 0 \\ 8 - 6 = - 2k \\ 2 = - 2k \\ k = - 1 \\ its \: ur \: answer$