SOLUTION: Determine the number that will complete the square to solve the equation the constant term has been written on the right side: x^2 +120x +51 =0

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Determine the number that will complete the square to solve the equation the constant term has been written on the right side: x^2 +120x +51 =0      Log On


   

Question 629609: Determine the number that will complete the square to solve the equation the constant term has been written on the right side: x^2 +120x +51 =0
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+x%5E2+%2B+120x+%2B+51+=+0+
+x%5E2+%2B+120x+=+-51+
+x%5E2+%2B+120x+%2B+%28120%2F2%29%5E2+=+-51+%2B+%28120%2F2%29%5E2+
+x%5E2+%2B+120x+%2B+3600+=+-51+%2B+3600+
3600 completes the square