0. Review of College Algebra

Find the domain of each rational expression. See Example 1. x³ - 1———— x - 1

Write each rational expression in lowest terms. See Example 2.8x² + 16x 4x²

Write each rational expression in lowest terms. See Example 2. 3 (3 - t)—————— (t + 5) (t - 3)

Write each rational expression in lowest terms. See Example 2.8k + 169k + 18

Write each rational expression in lowest terms. See Example 2.m² - 4m + 4 m² + m - 6

Write each rational expression in lowest terms. See Example 2.8m² + 6m - 9 16m² - 9

Multiply or divide, as indicated. See Example 3.15p³ 12p—— • ——— 9p² 10p³

Multiply or divide, as indicated. See Example 3. 2k + 8 3k + 12———— ÷ ———— 6 2

Multiply or divide, as indicated. See Example 3. 4a + 12 a² - 9————— ÷ ————— 2a - 10 a² - a - 20

Multiply or divide, as indicated. See Example 3. m² + 3m + 2 m² + 5m + 6——————— ÷ ———————— m² + 5m + 4 m² + 10m + 24

Multiply or divide, as indicated. See Example 3. xz - xw + 2yz - 2yw 4z + 4w +xz +wx —————————— • ————————— z² - w² 16 - x²

Add or subtract, as indicated. See Example 4. 3 5—— + —— 2k 3k

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

Add or subtract, as indicated. See Example 4. 1 b—— + —— a a²

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