Question 845169
By applying the quadratic formula to this equation 6x^2+7x-24 = 0

 *[invoke quadratic "x", 6, 7, -24 ]

We get  (-2.66, 0) and (1.5, 0) as the two roots. 

The vertex of of the parabola that is formed from this equation is at the point

(-21, -26.04). Therefore the minimum value for f(x) is -26.04.