# 8th Grade

*Lesson 7.9 – Factoring Special Products*

*LAST LESSON *

**Lesson Tool**: Big Ideas Algebra I Math textbook

**Lesson Goal**: I can factor polynomials by using special product patterns

**Recall**:* polynomial multiplication*

*Some pairs of binomials show patterns when multiplied. We can use these patterns to multiply other similar pairs of binomials*

*Sum and Difference Pattern (product is a binomial instead of a trinomial)*

*(a + b) (a – b) = a ^{2} – b^{2}*

*Square of a Binomial Pattern (we can find the product without expanding it)*

*(a + b) ^{2} = (a + b)(a + b) = a^{2} + 2ab + b^{2}*

*(a − b) ^{2} = (a − b)(a − b) = a^{2} − 2ab + b^{2}*

**Factoring a polynomial involves writing it as a product of 2 or more polynomials. It reverses the process of polynomial multiplication**

*Read the Key Idea: Difference of Squares Pattern (page 384)*

*Read Example 1: Factoring the Difference of Squares (page 384)*

*Read the Key Idea: Perfect Square Trinomial Pattern (bottom of page 384)*

*Read Example 2: Factoring Perfect Square Trinomials (page 385)*

**Please do problems 4 – 12 (all) (page 386)**

**Due Date**: Tuesday, May 17

# 7th Grade

*9.3 – 9.4 Quiz (page 412)*

*Chapter 9: Probability*

**Learning Tool**: Big Ideas Accelerated Math textbook

**Lesson Goal**: I can find the probability of compound events and make predictions using experimental probability

*Please do problems 1 – 13 (all) on page 412*

**Due Date**: Tuesday, May 17