You can
put this solution on YOUR website!
It amounts to solving it backwards:
Start with the solutions:
x = -1/3; x = 5/2
Clear of fractions:
3x = -1; 2x = 5
Get 0 on the right of each:
3x+1 = 0; 2x-5 = 0
Multiply equals by equals:
(3x+1)(2x-5) = 0
Foil that out:
6x²-15x+2x-5 = 0
6x²-13x+5 = 0
That's the quadratic equation.
Edwin