SOLUTION: I need help with this problem 3cosx+1= cos2x

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Question 952252: I need help with this problem
3cosx+1= cos2x
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
I need help with this problem
3cosx+1= cos2x
You need to add parentheses.
Is it 3cos(x) + 1 ?
Or 3cos(x+1) ?
----
cos^2(x) ?
cos(2x) ?
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They're free.