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x + x2 = 6

So x2 + x - 6 = 0

x2 + 3x - 2x - 6 = 0

x(x + 3) - 2(x + 3) = 0

(x + 3)(x - 2) = 0

So x + 3 = 0 so that x = -3

or x - 2 = 0 so that x = 2

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Q: X plus x to the 2nd power equals 6?
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