Algebra II For Dummies
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In algebra, multiplying binomials is easier if you recognize their patterns. You multiply the sum and difference of binomials and multiply by squaring and cubing to find some of the special products in algebra. See if you can spot the patterns in these equations:

  • Sum and difference: (a + b)(ab) = a2b2

  • Binomial squared: (a + b)2 = a2 + 2ab + b2

  • Binomial cubed: (a + b)3 = a3 + 3a2b + 3ab2 + b3

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Mary Jane Sterling is the author of Algebra I For Dummies, Algebra Workbook For Dummies, and many other For Dummies books. She taught at Bradley University in Peoria, Illinois for more than 30 years, teaching algebra, business calculus, geometry, and finite mathematics.

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