1. Factoring a SUM of Cubes
a3 + b3 = (a + b)(a2 – ab + b2)
Remember SOAP for the signs
Same Opposite Always Positive
Example:
© 2010, Dr. Jennifer L. Bell, LaGrange High School, LaGrange, Georgia (MCC.9-12.A.APR.3) Original Author: Meriam P. Freeman

2. Factoring a DIFFERENCE of Cubes
a3 – b3 = (a – b)(a2 + ab + b2)
Remember SOAP for the signs
Same Opposite Always Positive
Example:
© 2010, Dr. Jennifer L. Bell, LaGrange High School, LaGrange, Georgia (MCC.9-12.A.APR.3) Original Author: Meriam P. Freeman