Answer:
x = -10, 0
Explanation:
Step 1: Write quadratic
x² + 10x = 0
Step 2: Complete the Square
x² + 10x + 25 = 25
(x + 5)² = 25
Step 3: Square root both sides
x + 5 = ±5
Step 4: Subtract 5 on both sides
x = -5 ± 5
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