Question

if x=2 is a solution of 3x2-kx-2=0 find the value of k​

Answer 1

Answer:

2 x is 3 2kx known so 2 to 3 2

Answer 2

3×2×2 - k ×2 - 2

12- 2k -2

10-2 k =0

2k = 10

k = 10/2

k= 5

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