Question

Write the value of k for which the quadratic equation x² – kx + 4 = 0 has equal roots.

Answer 1

Answer:

see this attachment ☺️ ☺️☺️

Answer 2

Value of K = -4

Step-by-step explanation:

The value of k for which the quadratic equation x² – kx + 4 = 0 has equal roots:

+4 can be factorized as -2 and -2.

So k should be -4 for the equation to have equal roots. Let's check.

x² – 4x + 4 = 0

x² – 2x -2x + 4 = 0

x (x-2) -2(x -2) = 0

(x-2) (x-2) = 0

So the roots are equal.

Value of K = -4