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Intermediate Algebra Homework 08 Selected Solutions

Description (10 points) Selected solutions from Assignments 24, 25, §7.1-7.2.

§7.1 nth Roots and Rational Exponents

Here, we convert radical notation to rational exponents. One of the common mistakes is failure to properly
scope ( or group ) the expression . For example, means that you are taking the square root of the
expression 2x. Many students would write , but this means the correct grouping of this is
.

§7.2 Simplify Expressions using the Law of Exponents


(here we multiply the exponents together)

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