### Home > CCA2 > Chapter Ch12 > Lesson 12.1.4 > Problem12-82

12-82.

What is the fifth term of each expansion?

1. $(a + b)^9$

Review the Math Notes box in Lesson 10.3.1.
If you are looking for the fifth term, what will the exponents of $a$ and $b$ be?

1. $(2x + y)^8$

Use the same method as part (a).

$1120x^4y^4$