Question

if x = 3 is one root of quadratic equation is
$x { }^{2} - 2kx - 6 = 0$
then find the value of k

Answer 1

Hope it help u......... !

Answer 2

x^2-2kx-6=0
(3^2)-2×k×3-6=0
9-6k-6=0
-6k+3=0
-6k=--3
k= --3/ --6
k= 1 / 2

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