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Best Answer
2x2 + 6x - 8 = 72
∴ 2x2 + 6x + 64 =0
∴ x2 + 3x + 32 = 0
This can not be factored, as x is not equal to any integer. Using the quadratic equation, we find that:
x = -3/2 ± √119 / 2i
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