Smit

Thanks for  the help. I've added the lesson & a link.

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I'm sorry, I don't know what "zero-based index ordering" is. I've started just adding a rote "1" to the equation, but I still don't understand how it gets there. I hate doing things by rote, but I ...

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3. Where the heck does the 1 come from?

Where does the 1 in (a+1) come from? I'm sorry, I just don't understand.

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3. Where the heck does the 1 come from?

I think so, yes. Thanks for your help.

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3. Where the heck does the 1 come from?

Evan, Thanks for your help. I'm sorry I'm so slow at this. It's still not clear to me where the 1 is coming from. Shouldn't (1/7)^x-(1/7)^x equal 0? You're subtracting something from itself. Also, ...

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3. Where the heck does the 1 come from?

Miss A, I appreciate your help. I'm having real trouble generalizing this  to other problems, however.  Again, thank you for your help.

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3. Rational Exponents and Radicals