-2(2x-___)+ 1 = 17- 4x
c. For what missing value(s), if any, does the equation have no solution?

Let missing place be y

Solution has no solution means both sides are equal

On comparing

X^2 - 4x +(4/2^2) + y^2 + 8y + (8/2^2) = -4 + (4/2^2) + (8/2^2)(x + 2)^2 + (y + 4)^2 = -4 + 4 + 16your center is (-2, -4) and the radius is the sqrt of -4 + 4 + 16 which is 4