Solve the equation

y2 + 6y + 7 = 0

by completing the square.

Strategy: 1. Rewrite the equation with just the variable terms on the left.
2. Complete the square on the left side.
3. Extract square roots from both sides.
4.Solve the equation.
y2 + 6y = -7 Rewrite the equation with just the variable terms on the left.
Show work. Add the same number to both sides so as to make the left side a perfect square.

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