Question 300018
3x^2 - 11x = 20

I will set it up and you can finish.

We subtract 20 from both sides creating a zero on the right side of the quadratic equation.  How is that zero created?  Well, what is -20 + 20?
It is zero, right?

3x^2 - 11x - 20 = 0


Can you finish now?