SOLUTION: Can you help me solve the quadratic equation x(x-3)/2=5? I have tried subtracting 5 to get the problem to equal zero, but then I got stuck at x(x-3)/-3.

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Can you help me solve the quadratic equation x(x-3)/2=5? I have tried subtracting 5 to get the problem to equal zero, but then I got stuck at x(x-3)/-3.       Log On


   

Question 840783: Can you help me solve the quadratic equation x(x-3)/2=5? I have tried subtracting 5 to get the problem to equal zero, but then I got stuck at x(x-3)/-3.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
x%28x-3%29%2F2=5
x%28x-3%29=10
x%5E2-3x=10
x%5E2-3x-10=0
%28x-5%29%28x%2B2%29=0
Two solutions:
x-5=0
x=5
and
x%2B2=0
x=-2