Question

if x= 3 find the value of K ::: x^2-2kx-6=0

Answer 1

Hi friend
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Your answer
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Given that : - x = 3.

To calculate : - value of k.

Now,
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Let , p(x) = x² - 2kx - 6 = 0

Then,
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p(3) = (3)² - 2 × k × 3 - 6 = 0

=> 9 - 6k - 6 = 0

=> 3 - 6k = 0

=> - 6k = - 3

=> k = - 3/- 6

=> k = 1/2

HOPE IT HELPS

Answer 2

x^2-2kx-6=0
=>3^2-2×k×3-6=0
=>9-6k-6=0
=>3-6k=0
=>3=6k
=>k=3/6
=>k=1/2