SOLUTION: What are the step to solving this problem because I have the answer for a, which are 7, -3, but cannot seem to get started. I have tried using the quadratic equation formula withou

Algebra ->  Equations -> SOLUTION: What are the step to solving this problem because I have the answer for a, which are 7, -3, but cannot seem to get started. I have tried using the quadratic equation formula withou      Log On


   

Question 339092: What are the step to solving this problem because I have the answer for a, which are 7, -3, but cannot seem to get started. I have tried using the quadratic equation formula without any sucess. I am competely stuck here. Someone please help.
(a-2)^2=25
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Take the sqrt of both sides
a-2 = ± 5
a-2 = 5
a = 7
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a-2 = -5
a = -3