Asked by Sunday
                Solve the equation below for x.  What is the solution set? 
5(x-2)^2=125
Answer : x=-3 or x=7
I know I need to do factoring, just forget how to set it up. I also can't figure out where this -20x+20 came from. Thanks for the assistance.
            
        5(x-2)^2=125
Answer : x=-3 or x=7
I know I need to do factoring, just forget how to set it up. I also can't figure out where this -20x+20 came from. Thanks for the assistance.
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