Question

Find the value of k,for which one root of the quadratic equation
$k {x}^{2} - 14x + 8 = 0$
is 2

Answer 1

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Answer 2

k(x)^2-14x+8=0
if one root is 2 then
k(2)^2-14(2)+8=0
4k-28+8=0
4k=28-8
k=20/4=5