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Objective: SWBAT… Factor perfect square trinomials and the difference of two squares

Homework: 1. Write out all the perfect squares with factors from 1 to 15. Example: 1*1 = 1, 2*2=4, 15*15=? 2. Know all of these perfect squares and be prepared for a quiz on Thursday. Objective: SWBAT… Factor perfect square trinomials and the difference of two squares. Bell Ringer:

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Objective: SWBAT… Factor perfect square trinomials and the difference of two squares

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  1. Homework: 1. Write out all the perfect squares with factors from 1 to 15. Example: 1*1 = 1, 2*2=4, 15*15=? 2. Know all of these perfect squares and be prepared for a quiz on Thursday. Objective: SWBAT… Factor perfect square trinomials and the difference of two squares Bell Ringer: Explain the rule for simplifying like terms when you are adding and subtracting polynomials. • 5 minutes • 4 minutes • 3 minutes • 2 minutes • 1 minute • 30 seconds • TIMES UP!!!

  2. Homework: 1. Write out all the perfect squares with factors from 1 to 15. Example: 1*1 = 1, 2*2=4, 15*15=? 2. Know all of these perfect squares and be prepared for a quiz on Thursday. Objective: SWBAT… Factor perfect square trinomials and the difference of two squares Perfect Square Trinomial • For every real number a and b • a2 + 2ab + b2 = (a+b)(a+b) • =(a+b) 2 • a2 - 2ab + b2 = (a-b)(a-b) • =(a-b) 2 Examples A. x2 + 8x + 16 = (x+4)(x+4) = (x+4)2 B. 4n2 – 12n +9 = (2n-3)(2n-3) = (2n-3)2

  3. Homework: 1. Write out all the perfect squares with factors from 1 to 15. Example: 1*1 = 1, 2*2=4, 15*15=? 2. Know all of these perfect squares and be prepared for a quiz on Thursday. Objective: SWBAT… Factor perfect square trinomials and the difference of two squares How do you recognize a Perfect Square Trinomial? 1. The first and last terms are perfect squares 2. The middle term is twice the product of one factor from the first term and one factor from the last term For al real numbers a and b Factoring the difference of two squares: a2-b2 = (a+b) (a-b) Example x2-64 = (x-8)(x+8)

  4. Homework: 1. Write out all the perfect squares with factors from 1 to 15. Example: 1*1 = 1, 2*2=4, 15*15=? 2. Know all of these perfect squares and be prepared for a quiz on Thursday. Objective: SWBAT… Factor perfect square trinomials and the difference of two squares Describe and correct the error made in factoring: 9x2- 49 = (9x + 7)(9x-7) Factor the following: 1. x2 -14x + 49 2. s2 -16 3. 12x2 – 12x + 3

  5. Homework: 1. Write out all the perfect squares with factors from 1 to 15. Example: 1*1 = 1, 2*2=4, 15*15=? 2. Know all of these perfect squares and be prepared for a quiz on Thursday. Objective: SWBAT… Factor perfect square trinomials and the difference of two squares Describe what perfect square is, in your own word, and explain why it would be helpful to know when factoring. Reflection

  6. Homework: 1. Write out all the perfect squares with factors from 1 to 15. Example: 1*1 = 1, 2*2=4, 15*15=? 2. Know all of these perfect squares and be prepared for a quiz on Thursday. Objective: SWBAT… Factor perfect square trinomials and the difference of two squares Remove everything from your desk except a pen or pencil QUIZ!!! 5 – 10 minutes

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