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11-84.
  1. What is the fifth term of each expansion? Homework Help ✎

    1. (a + b)9

    2. (2x + y)8

Review the Math Notes box in Lesson 10.3.3.
If you are looking for the fifth term, what will the exponents of a and b be?

Use the same method as part (a).

1120x4y4