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Home > INT3 > Chapter 10 > Lesson 10.3.2 > Problem 10-171

10-171.

Use the pattern for (a + b)4 to expand (3x + 1)4. Homework Help ✎

Recall Pascal's Triangle and the expanded form of (a + b)4.

Substitute 3x for a and 1 for b.

81x4 + 108x3 + 54x2 + 12x + 1