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Use Binomial Theorems to Expand Functions

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I am having a hard time with my math work and need help to solve the following problems.

1. Use the Binomial Theorem to expand: (2x − y)^6

2. Find the coefficient a of the given term
ax^5 in the expansion of (x - 3)^12.

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Solution Summary

The expert uses the binomial theorems to expand functions.

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