Question

Find the value of k for whicj one root of the Quadratic equation kx2-14x+8=0 is 2

Answer 1

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Answer 2

putting the value of 2 in x we get
k2^2 - 14 *2 +8 = 0
k4-28 +8 =0
4k-20=0
4k=20
k=5
hence value of k is 5