Question 200963
2/3 x^2 - x = 5/2
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Multiply by 6 to eliminate fractions
4x^2 - 6x = 15
4x^2 - 6x - 15 = 0
*[invoke solve_quadratic_equation 4,-6,-15]
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The solver doesn't get the factors right when the coeff of the x^2 term is not 1, so ignore that, and ignore what it says for factors.
x = (3 + sqrt(69))/4
x = (3 - sqrt(69))/4