SOLUTION: Hello, I'm having a hard time with this problem in trig: 2tanx - (1 + tanx)^2 I don't understand whether I have to distribute the negative to the parenthesis or write th

Algebra ->  Trigonometry-basics -> SOLUTION: Hello, I'm having a hard time with this problem in trig: 2tanx - (1 + tanx)^2 I don't understand whether I have to distribute the negative to the parenthesis or write th      Log On


   



Question 939159: Hello,
I'm having a hard time with this problem in trig:
2tanx - (1 + tanx)^2
I don't understand whether I have to distribute the negative to the parenthesis or write the parenthesis twice then foil? If someone could help me though the problem that would be great!
Thank you in advance!

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
2tanx - (1 + 2tanx + tan^2x) = -1 - tan^2x
....
Re TY
Yes, Good Work.
-(1+tan^2 (x)) = -sec^2(x)