Answer:
x = 6
Explanation:
Equation: x² - 12x + 36 = 0
Quadratic formula: ax² + bx + c = 0 --> x = (-b ± √(b² - 4ac))/2a
Substitute: x = (12 ± √(12² - 4 * 36))/2
Multiply: x = (12 ± √(144 - 144))/2
Subtract: x = (12 ± 0)/2
Solve: x = 6
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