Question

find K if quadratic equation has equal roots. 4x^2-16x+k=0​

Answer 1

Answer:

answer is as follows

Step-by-step explanation:

4x^2-16x+k=0

D=0

=b^2-4ac=0

=(-16)^2-4×4×k=0

=256-16k=0

=-16k=-256

or k=16

Answer 2

Step-by-step explanation:

Given, that the equation has equal roots.

${b}^{2} - 4ac = 0 \\ {16}^{2} - 4(4)(k) = 0 \\ {16}^{2} - 16k =0 \\ {16}^{2} = 16k \\ k = 16$

The answer is k=16.

Thank you