Which choice is equivalent to the following equation?
x = (-4)^2 +27

Answer:
C. x = y^2 - 8y + 43
Step-by-step explanation:
x = (y - 4)^2 + 27
(y - 4)(y - 4) = y^2 - 4y - 4y + 16
x = (y^2 - 8y + 16) + 27
x = y^2 - 8y + 43
The answer would be C. x = y^2 - 8y + 43.