Learn how to evaluate numbers raised to rational powers. When given a number raised to a rational power, we take the nth root ...

Learn how to divide rational expressions. A rational expression is an expression in the form of a fraction, usually having ...

When my students grow too dependent on their calculators, I ask them to find a number that, when multiplied by itself, gives them 2. Students quickly see that since 1² = 1 and 2² = 4, the answer has ...