Question

② if root of the quadratic equation
6x²-x-k=0
is 2/3,
then find the value of k

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Answer 1

6×(2/3)²-2/3-k = 0

6×4/9-2/3-k= 0

2×4/3-2/3-k =0

8/3-2/3-k = 0

6/3-k = 0

2-k = 0

k = 2