If -2 is a root of the equation kx^2 + 5x - 3k = 0 then, find the valu – InterviewSolution

1.

If -2 is a root of the equation kx^2 + 5x - 3k = 0 then, find the value of k.

Answer»

Step-by-step explanation:

The ROOT of the QUADRATIC equation is

$k {x}^{2} + 5x - 3k = 0$

$k \times ( { - 2)}^{2} + 5 \times ( - 2) -3 k = 0$

$k \times 4 - <klux>10</klux> - 3k = 0$

$4k - 10 - 3k = 0$

$k = 10$

The value of k is 10.

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