0. Review of College Algebra

Add or subtract, as indicated. See Example 6. -5√32 + 2√98

Simplify each complex fraction. See Examples 5 and 6. (y/r) ÷ (x/y)

Find each root. See Example 3. ∛0.125

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

Add or subtract, as indicated. See Example 4. (5/12x²y) - (11/6xy)

Multiply or divide, as indicated. See Example 3. ((x² + x) / 5) • 25 / (xy + y)

Rationalize each denominator. See Example 8. 5 —— √5

Add or subtract, as indicated. See Example 4. (1/6m) + (2/5m) + (4/m)

Find each root. See Example 3. -∜16

CONCEPT PREVIEW Perform the indicated operation, and write each answer in lowest terms 3 7 —— + —— x x

Find each square root. See Example 1. √100

Simplify each radical. See Example 5. - √160

Add or subtract, as indicated. See Example 6. 2√3 + 5√3

Rationalize each denominator. See Example 8. 3 ———— 4 + √5

Simplify each complex fraction. See Examples 5 and 6. [(y + 3)/y − 4/(y − 1)] / [(y/y + 1/y) / (y − 1) + 1/y]