Ifx = 3 is one root of the quadratic equation x^{2}-2 k x-6=0, then fi

1.	Ifx = 3 is one root of the quadratic equation x^{2}-2 k x-6=0, then find the value of k.
Answer» Given it's one root of the equation x² - 2kx - 6 = 0 one of its root x = 3 for finding the value of k. Put the value of x in this equation. (3)² - 2k(3) - 6 = 0 9 - 6k - 6 = 0 6k = 3 k = 3/6 k = 1/2 Hence, the value of k = 1/2

Ifx = 3 is one root of the quadratic equation x^{2}-2 k x-6=0, then find the value of k.

Answer»

Given it's one root of the equation x² - 2kx - 6 = 0

one of its root x = 3 for finding the value of k. Put the value of x in this equation.

(3)² - 2k(3) - 6 = 0

9 - 6k - 6 = 0

6k = 3

k = 3/6

k = 1/2

Hence, the value of k = 1/2