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Can someone explain to me these equations (not just solve, explain):
9^x=2e^(x^2)
(e^x)-(e^-x)=1
(10^2x)+3(10^x)-10=0
These are a few of the equations from my College Algebra class that I've been having a really hard time with, and sorry if this seems like I'm trying to get you to do my homework, but I really, really need help. The last equation has been giving me a huge headache...I'm trying to apply log10 to the equation which I think is either supposed to give me 2x+3x=1 (which doesn't work) or 2x + x + log10of3=1 (but that doesn't work either). Anyway, much appreciated.
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