5.7 Completing the Square. Warm-up #1 Solve Warm-up #2 Solve.

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Presentation transcript:

5.7 Completing the Square

Warm-up #1 Solve

Warm-up #2 Solve

Completing the Square If you have a problem that seems impossible to factor, one option is to turn it into a perfect square trinomial which can be more easily factored. HOW?! Completing the square.

Completing the Square Example 3 p.283 1a) Solve Not a perfect square trinomial… so turn it into one using Suggested Algebra I Review p.266 Simplifying Radical Expressions

Completing the Square 1b) Solve

Completing the Square 1c) Solve

5.8 – The Quadratic Formula Use this formula to find values of x when completing the square is not reasonable.

The Quadratic Formula Example 1 p.290 1a) Solve using the quadratic formula.

The Quadratic Formula 1b) Solve using the quadratic formula.

Homework 5.7 – Completing the Square p.285 #1-6, 13, 14, – The Quadratic Formula p.293 #1-10, 22-24, Algebra I Review p.266 – Simplifying radical expressions