Sec 1: Factoring: The Difference of Two Squares and the Sum/Difference of Two Cubes
Learning Target: I will factor polynomials using the sum or difference of 2 squares or cubes.
Unit 5: Polynomial Functions
Sec 1: Difference of 2 Squares
Factor the following:1. x² - 42. 9x² - 813. 16x² - 144y²
Following this same pattern, we can say that the formula for the difference of 2 squares is
a² - b² =
Quality Core Practice
List all cubes from 1³ to 10³
Ex 2: For a demonstration of the Sum and Difference of 2 Cubes Formulas watch:
•http://www.youtube.com/watch?v=T0ItI7q6Q1U&feature=related
Ex 3: Factor Completely
2a³ - 54b³
Ex 4: The Application!Consider the function 2x³ + 54 = 0.
•What are the real roots of the function?
•What are the complex roots of the function?
•Could you have used SADMEP to find all of the roots of this function? Why or why not?
HOMEWORK
•Factoring the Sum or Difference of Cubes worksheet