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 numerous For Dummies books. She has been teaching at Bradley University in Peoria, Illinois, for more than 25 years.

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