Hi Charles T.
Given 12x^2+35x-20=5x-2
First isolate everything on one side of the equal sign
Secondly combine like terms
Finally factor it
First
12x2 +35x - 5x -20 + 2 = 0
Second
12x2 + 30x - 18 = 0
Finally
(12x - 6)(x + 3)
You can check the above with FOIL to give
12x2 + 36x - 6x - 18 = 12x2 + 30x - 18
I hope this helps
If you have any questions please send me a message.