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x2 - 14x = 7 add (14/2)2 to both sides

x2 - 14x 72 = 7 + 72

(x - 7)2 = 56 take the square root to both sides

x - 7 = +&- sq. root of 56

x = - 7 +&- 2(sq. root of 14)

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15y ago

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