Section 1.3 Quadratic Equations

Before Starting this Section, Review

  1. 1 Factoring (Section P.4 )

  2. 2 Square roots (Section P.6 , page 61)

  3. 3 Rationalizing (Section P.6 , page 67)

  4. 4 Linear equations (Section 1.1 , page 83)

Objectives

  1. 1 Solve a quadratic equation by factoring.

  2. 2 Solve a quadratic equation by the square root method.

  3. 3 Solve a quadratic equation by completing the square.

  4. 4 Solve a quadratic equation by using the quadratic formula.

  5. 5 Solve applied problems.

The Golden Rectangle

The ancient Greeks, in about the sixth century B.C., sought unifying principles of beauty and perfection, which they believed could be described mathematically. ...

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