Question

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

Answer 1

x =
`y^(2)` + -8y + 43

Explanation:

`(y - 4)^(2) + 27` = (y - 4) x (y - 4) + 27

(y x y) + (y x -4) + (y x -4) + (-4 x -4) + 27

(
`y^(2)`) + (-4y) + (-4y) + (16) + 27

`y^(2)` + -8y + 43

C