0
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2x2+6x-8 = 72 2x2+6x-8-72 = 0 2x2+6x-80 = 0 (2x-10)(x+8) = 0
quadratic
A quadratic polynomial.
2x2 + 6x - 1 = 0 (-6 +/- sqrt (36 - 8)) /4 ( -6 +/- 5.29) / 4 -1.5 +/- 1.32 -2.82 or -0.18
(2x+4)(x+1)