(x+1)^2 = -4
What are the solutions?

x = 4i - 1 or

x = 4i + 1

Step-by-step explanation:

(x+1)^2 = -4

x+1 = (+-)4i

x = +-4i - 1

==>

x = 4i - 1 or

x = 4i + 1

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.

a; x = 0.5

step-by-step explanation:

-10x = -5

x = 0.5