Answer: D
Step-by-step explanation:
y = x² + 16x + 70
-70 -70
y - 70 = x² + 16x next, complete the square by adding [tex](\frac{16}{2})^{2}[/tex] to both sides
y - 70 + 64 = x² + 16x + 64 remember that x² + 16x + 64 is a perfect square of (x - 8)²
y - 6 = (x + 8)²
+6 +6
y = (x + 8)² + 6
