SOLUTION: solve the equation using the quadratic formula. (9x-1)(2x+1)=2x What is the solution set?

Question 647203: solve the equation using the quadratic formula.
(9x-1)(2x+1)=2x
What is the solution set?
Answer by colliefan(242) (Show Source): You can put this solution on YOUR website!
You must first get it into the form:
ax^2+bx+c=0
Then, for ax2 + bx + c = 0, the value of x is given by:

So:
(9x-1)(2x+1)=2x
18x^2+7x-1=2x
18x^2+5x-1=0
Then substitute a, b and c into the quadratic formula:

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