1.

If x=3is one root of quadratic equation x-2kx-6=0then find k

Answer» P(x) = x² - 2kx - 6 = 0
p(3) = 3² - 6k - 6 = 0
      ⇒ 9 - 6k - 6 = 0
      ⇒ 3 = 6k
      ⇒ K = 1/2


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