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-7 therefore the quadratic equation has no real roots
2x2 + 10 = 9x 2x2 - 9x + 10 = 0 (x - 2)(2x - 5) = 0
2x2 + 3x - 20 = (x + 4)(2x - 5).
It is a quadratic equation that has 2 solutions
The roots of the equation are [5 +/- sqrt(11)]/2 = 4.158 and 0.842