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x2+2x-4 = 0

x = (-2 plus/minus sqrt (4-(4x1x-4)) / 2

x = (-2 plus/minus sqrt 20)/2

x = (-2 - sqrt 20)/2 or (-2 + sqrt 20)/2

x = -3.236 or 1.236

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14y ago
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Q: X2 plus 2x-4 equals 0
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