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Let’s all hold hands and shmoop together… Simplify a to the 2x power times a to the
negative 2x power. And here are the potential answers…
This question tests really one thing:
Do we realize that we can just add or subtract exponents when the bases are the same in a
problem?
So here we have a to the 2x times a to the NEGATIVE 2x.
And we are adding the exponents… so… 2x minus 2x is … yep. Zip. Zilch. Nada.
So what’s a to the … zero power?
By definition – any number to the zero power is …1.
So a to the zero is 1, and the answer is B.
As in, “Base running.”