Question 280327
    solve the equation 52x-4x^2=60
.
Reordering:
0 = 4x^2 - 52x + 60
Dividing both sides by 4:
0 = x^2 - 13x + 15
Since we can't factor we must resort to the quadratic equation.
Doing so yields:
x = {11.72, 1.28}
.
Details of quadratic:
*[invoke quadratic "x", 1, -13, 15 ]