1.

Fine the value of K for which one root of the quadrtic equation kx²-14x+8=0is2

Answer»

Since 2 is one root of the quadratic equation,

We substitute X=2

k(2)^2 - 14(2) +8= 0

4k-28+8=0

4k-20=0

4k=20

k=5

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