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Home > A2C > Chapter 12 > Lesson 12.4.1 > Problem 12-163

12-163.

Use the pattern for (a + b)5 to write the fourth term of (w − 4z)5Homework Help ✎

Using Pascal's Triangle, find the pattern for the 4th term of the 5th row.

10a2b3

Substitute w for a and −4z for b and simplify.

−640w2z3