# 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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