SOLUTION: Use the square root property to solve the equation: 5z^2 + 5 = 725 Please show me the steps for this. Thank you.

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Use the square root property to solve the equation: 5z^2 + 5 = 725 Please show me the steps for this. Thank you.      Log On


   

Question 761982: Use the square root property to solve the equation:
5z^2 + 5 = 725
Please show me the steps for this. Thank you.
Answer by sachi(548) About Me  (Show Source):
You can put this solution on YOUR website!
5z^2 + 5 = 725
or 5z^2 =725-5=720
or z^2=720/7=144=12^2
or z=12