Answer:
y = 4x² - 16x + 16
Step-by-step explanation:
Standard form is y = ax² + bx + c
To convert from vertex form to standard form multiply out the equation
1. Solve (x-2)² using F.O.I.L.
(x - 2) · (x - 2) = x² - 4x + 4
y = 4(x² - 4x + 4)
2. Distribute the 4
y = 4x² - 16x + 16