0. Review of College Algebra

Rationalize the denominator and simplify the radical expression.

$\(\frac{2-\sqrt3}{2+\sqrt3}\)$

CONCEPT PREVIEW Perform the operations mentally, and write the answers without doing intermediate steps. √25 + √64

CONCEPT PREVIEW Perform the operations mentally, and write the answers without doing intermediate steps. √6 • √6

CONCEPT PREVIEW Perform the operations mentally, and write the answers without doing intermediate steps. (√28 - √14) (√28 + √14)

Find each square root. See Example 1. √100

Find each square root. See Example 1. -√256

Find each square root. See Example 1. √4⁄25

Find each square root. See Example 1. -√144⁄121

Find each square root. See Example 1. √-121

Find the square of each radical expression. See Example 2. -√19

Find the square of each radical expression. See Example 2. √2 /3

Find the square of each radical expression. See Example 2. √3x² + 4

Find each root. See Example 3. -∛512

Find each root. See Example 3. -∜16

Find each root. See Example 3. ∛0.001