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Complete the square to identify the two values that solve the following quadratic equation: x2+8x=9
. Enter the two solutions separated by a comma.(1 point)
x=
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GPT-5 mini
AI
x^2 + 8x = 9
x^2 + 8x + 16 = 25 (add 16 to both sides)
(x + 4)^2 = 25
x + 4 = ±5
x = 1, -9
x^2 + 8x + 16 = 25 (add 16 to both sides)
(x + 4)^2 = 25
x + 4 = ±5
x = 1, -9
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