Section P.6 Rational Exponents and Radicals

Before Starting This Section, Review

  1. 1 Absolute value (Section P.1 , page 9)

  2. 2 Integer exponents (Section P.2 , page 20)

  3. 3 Special-product formulas (Section P.3 , page 37)

  4. 4 Properties of fractions (Section P.1 , page 13)

Objectives

  1. 1 Define and evaluate square roots.

  2. 2 Simplify square roots.

  3. 3 Define and evaluate nth roots.

  4. 4 Combine like radicals.

  5. 5 Rationalize denominators or numerators.

  6. 6 Define and evaluate rational exponents.

Friction and Tap-Water Flow

Suppose your water company had a large reservoir or water tower 80 meters or more above the level of your cold-water faucet. If there was ...

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