
Multiplication Table = 3 * x + 3 * 9 = 3x + 27 Example 2: (x + 2)(x  5) (+ x + 2)(+ x  5)
Multiplication Table = x * x  x * 5 + 2 * x  2 * 5 = x^{2}  5x + 2x  10 = x^{2}  3x  10 Example Problems Using the Vertical Format: Example 1: (x + 2)(x  5) (+ x + 2)(+ x  5)
+ x  5
+ x + 2 ___________ x 2x  10  5x x^{2} ___________
x^{2}  3x  10 (+2) * (+ x  5) (+x) * (+ x  5)
Example 2: (x + 2)(x^{2} + x  5) (+ x + 2)(+ x^{2} + x  5)
+ x^{2} + x  5
+ x + 2 _________________ x + 2x^{2} + 2x  10  5x + x^{2} + x^{3} _________________
x^{3} + 3x^{2}  3x  10 (+2) * (+ x^{2} + x  5) (+x) * (+ x^{2} + x  5)
Free Resources Distributive Law Expression Calculator http://www.algebrahelp.com/calculators/expression/oops/ Flash Cards http://www.studystack.com/flashcard1870 How does the distributive law work? http://student.ccbcmd.edu/immt/PLP/distributiveProperty/DistributiveProperty.html Real Life Example of the Distributive Law at work http://videos.howstuffworks.com/hsw/22881discoveringmaththedistributivepropertyvideo.htm Some Interesting Examples  requires the installation of MathPlayer (free) to view http://www.thrashersscoreforschools.com/WorkArea/ShowSampleArea.aspx Videos http://mathtrain.tv/podcast/?tag=distributiveproperty http://www.mathatube.com/propertiesdistributiveofmulti.html http://www.mefeedia.com/entry/introductiontothedistributiveproperty/15983103 http://www.mathatube.com/propertiesdistributiveboxmothed.html Video for the Deaf (Signing) http://www.shodor.org/deafstemterms/distributive_property Sample Problems http://www.studystack.com/studytable1870 Use "FireFox" Browser if any of the websites listed above do not display properly on Internet Explorer (FireFox can be downloaded at no charge at: 