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Home > CCA > Chapter 11 > Lesson 11.3.1 > Problem 11-76

11-76.

Evaluate the expression below when and . Homework Help ✎

Start by simplifying the expression.
Remember that when you multiply numbers with the same base,
you can add the exponents together.

Substitute the given values for and then simplify.
Fractional exponents represent a power and a root.
The root is determined by the denominator, and the power by the numerator.
For example, the exponent for means the th root of raised to the rd power.