SOLUTION: I need help solving the following... I have to simplify and then solve using the quadratic formula but I am getting stuck something is not right.. I have started to simplify but e

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: I need help solving the following... I have to simplify and then solve using the quadratic formula but I am getting stuck something is not right.. I have started to simplify but e      Log On


   

Question 501814: I need help solving the following... I have to simplify and then solve using the quadratic formula but I am getting stuck something is not right.. I have started to simplify but end up canceling out the 3x but don't I need that??? Grrrr Help please!!!
x(x+3)-2=3x+7
Found 2 solutions by Alan3354, jorel1380:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
x(x+3)-2=3x+7
x%5E2+%2B+3x+-+2+=+3x+%2B+7
x%5E2+-+9+=+0
(x-3)*(x+3) = 0
x = -3, 3

Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
x(x+3)-2=3x+7
x2+3x-2=3x+7
x2-9=0
x2=9
x=3 or -3..