5.5 Factoring Trinomial Concepts 1, 3, 4, 5. Factoring Trinomials AC-method  Multiply: (2x + 3)(x + 2)  Factor: 2x 2 + 7x + 6.

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Presentation transcript:

5.5 Factoring Trinomial Concepts 1, 3, 4, 5

Factoring Trinomials AC-method  Multiply: (2x + 3)(x + 2)  Factor: 2x 2 + 7x + 6

The AC-method to factor ax 2 + bx + c  1. Multiply the coefficients of the first and last terms: ac  2. Find two integers that add to b but multiply to ac.  3. Rewrite the middle term with these two numbers.  4. Factor by grouping.  Example: Factor 12x 2 - 5x - 2

Examples

 Factor

Examples

HOMEWORK 5.4  Pg. 360 – 362  #10, 18, 44, 74, 80, 92