SOLUTION: how would you solve these problems? I have been trying to figure out how to do it but I am not understanding what I am doing wrong. 4(x+12)^2=60 3x+6+12=40 3x+6 is square roo

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Question 759406: how would you solve these problems? I have been trying to figure out how to do it but I am not understanding what I am doing wrong.
4(x+12)^2=60
3x+6+12=40 3x+6 is square rooted
10 square root 14x+7=140
-8(2x+6)^2=-648
Please show step by step directions

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
4(x+12)^2=60
--------
Divide by 4
(x+12)^2 = 15
x+%2B+12+=+sqrt%2815%29
x+=+-12+%2B+sqrt%2815%29 Answer 1
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x+%2B+12+=+-sqrt%2815%29
x+=+-12+-+sqrt%2815%29 Answer 2