CPM Homework Help : A2C Problem 13-88

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Home > A2C > Chapter 13 > Lesson 13.1.4 > Problem 13-88

13-88.

What is the fifth term of each expansion? Homework Help ✎
1. (a + b)⁹
2. (2x + y)⁸

Hint (a):

Use the binomial theorem.

Answer (a):

₉C₅ · a⁵ · b⁹⁻⁵ = 126a⁵b⁴

Hint (b):

See part (a).

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