SOLUTION: what is this algebraically equations using square root x^2-225=0

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: what is this algebraically equations using square root x^2-225=0      Log On


   

Question 443848: what is this algebraically equations using square root
x^2-225=0
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
x^2-225=0
add 225 to both sides
x^2 = 225
Find square root of both sides
x = sqrt%28225%29
x = +/-15