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If x = –2 is a root of the quadratic equation k x2(x raised to the power 2) + x – 6 = 0 Than the value of k is

Posted by Pranjal Jangid 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 5 years, 1 month ago

kx² + x -6 =0

put x =-2

k(-2)² + (-2) - 6=0

4k -2 -6 = 0

4k - 8 = 0

4k = 8

Therefore,

k = 2

1Thank You

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CBSE > Class 10 > Mathematics