SOLUTION: Solve the following equation by first doing a substitution to make it a quadratic. (3x-5)^2 + (3x-5) - 2 = 0

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Solve the following equation by first doing a substitution to make it a quadratic. (3x-5)^2 + (3x-5) - 2 = 0      Log On


   

Question 1061506: Solve the following equation by first doing a substitution to make it a quadratic.
(3x-5)^2 + (3x-5) - 2 = 0
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
v=3x-5


v%5E2%2Bv-2=0

%28v-1%29%28v%2B2%29=0


system%28v=1%2Cor%2Cv=-2%29

Back-substitute for v and solve.