Question

-4 minus x cube + 4 x square + 4 k x minus K find the value of k , x is equal to minus k

Answer 1

Answer:

-4³ + 4² + 4kx - k = 0 is the equation

x = -k

Therefore,

-64 + 16 + 4kx + x = 0

-48 + 4kx + x = 0

4kx + x = 48

taking x as common,

x (4k + 1) = 48

4k + 1 = 48/x

4k = 48/x + 1

4k = 48 + x/x

k = 48 + x/4x