## Introductory Algebra for College Students (7th Edition)

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RECALL: The zero-exponent rule states that for any non-zero number $a$, $a^0=1$ Note that $-6^0$ means "the negative of $6^0$." Use the zero-exponent rule to obtain: $=-(6^0)+(-6)^0 \\=-1 + 1 \\=0$