Question

For what value of K, for which one root of the quadratic equation kx^2-14x+8=0 is 2

Answer 1

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Kx² -14x + 8 = 0

⏩Assuming one root to be alpha

⏩Using the sum and products relation of the roots.

⏩That is alpha + 2 = -b/a
product = 2(aplha) = c/a

⏩K = 5

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