Question

Solve by completing the square.
y² +10y = -9

Answer 1

Here is the ans ..hope it helps:)

Answer 2

y=−1 or y=−9

Explanation:

y2+10y=−9

Step 1: Subtract -9 from both sides.

y2+10y−(−9)=−9−(−9)

y2+10y+9=0

Step 2: Factor left side of equation.

(y+1)(y+9)=0

Step 3: Set factors equal to 0.

y+1=0 or y+9=0

y=−1 or y=−9

Answer:

y=−1 or y=−9