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OpenStudy (anonymous):
X2 - x – 2 = 0 a = 1 b = -1 c = -2 d = b2 – 4ac = (-1)2 -4(1) (-2) = 1 - (-8) = 9 x = -b +-√d / 2*a
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OpenStudy (anonymous):
ur simplification is correct, but what do u want to ask?
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