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Texas A&M University
Wtamu Virtual Math Lab: Beginning Algebra: Negative Exponents
A tutorial with step-by-step examples involving negative exponents and scientific notation. Offers a review of the exponent rules and cites them to justify steps taken in the examples.
Other
Brown Math: It's the Law the Laws of Exponents
Step-by-step explanations of the exponent laws including rules for combining powers and roots. Includes practice exercises.