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Q.
- Use FOIL Method: To expand , we'll use the FOIL method, which stands for First, Outer, Inner, Last.
- First Term: First: Multiply the first terms in each binomial, .
- Outer Terms: Outer: Multiply the outer terms, .
- Inner Terms: Inner: Multiply the inner terms, .
- Last Term: Last: Multiply the last terms in each binomial, .
- Add Products: Now, add all the products together: .
- Combine Like Terms: Combine like terms: .
