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i'm having trouble with align* when i'm using any type of parenthesis.

Here is the code:

\begin{align*}  
V_o^\prime  &= A(V_2^+ -V_2^-) \\                       
&= A\left[0-\left(R_1\frac{V_o-V_o^'}{R_1+R_2}+V_o\right)\right] \\  !!!!!!!!!
V_o^\prime (R_1 +R_2)   &=  -AR_1V_o +AR_1V_o^\prime -AR_1V_o-AR_2V_o   \\  
        &= -2AR_1V_o +AR_1V_o^\prime -AR_2V_o               \\  
\end{align*}

The line with !!!! is the line that is troubling. I have already removed it from the code and the file compile perfectly

**Error message**

! Missing } inserted.
<inserted text>
}
l.75 \end{align*}
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2  
Instead of V_o^' use V_o' or V_o^\prime. –  Gonzalo Medina Mar 30 '13 at 2:24
    
I can´t believe it haha that was it, it is needed to write V_o^\prime. The problem was that I edited the equation in Mathematica so it will give me the code in LaTeX. Thanks a lot @GonzaloMedina –  est.tenorio Mar 30 '13 at 2:28
4  
The "LaTeX" generated by such tools is awe-inspiringly awful, in my experience. Better go over what they generate, clean up and indent for readability. Yes, it hurts. But reading the code has been shown to cause eye cancer. –  vonbrand Mar 30 '13 at 2:50
2  
This looks 'too localized' to me, as it's a very specific issue. Perhaps you can edit the question to make it more general (Mathematica exporting ' and messing up), or I think it's likely to get closed. –  Joseph Wright Mar 30 '13 at 7:11
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closed as too localized by Marco Daniel, Thorsten, Claudio Fiandrino, lockstep, Mico Mar 30 '13 at 9:10

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