Question

If -4 is a root of the quadratic equation x2 + px - 4 = 0 and the quadratic equation
x2 + px + k = 0 has equal roots, find the value of k.

Answer 1

Answer:

k=-4

Step-by-step explanation:

(-4)^2-4p-4=0

16-4=4p

p=3

(-4)^2-12+k=0

16-12+k=0

k=-4