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Find the value of k, for …

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Find the value of k, for which one root of the quadratic equation k×2-14×+8=0 is 2

Posted by Sohan Singh 6 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 6 years, 8 months ago

Given:

Equation: kx²-14x+8= 0

Also, One root of this Equation is 2

Substitute the Given value in Equation!

kx²-14x+8 = 0

k(2)² -14(2)+8 = 0

k4-28+8 = 0

4k-20 = 0

4k= 20

•°• k = 20/4

=> k = 5

0Thank You

ANSWER

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CBSE > Class 10 > Mathematics