Expanding the Expression: (a + 3)(a - 2)
This article will guide you through expanding the expression (a + 3)(a - 2). This is a fundamental concept in algebra and involves using the distributive property.
The Distributive Property
The distributive property states that for any numbers a, b, and c: a(b + c) = ab + ac
We can apply this to our expression:
Step 1: Expand the first term (a + 3)
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Multiply a by each term inside the second parentheses:
- a * a = a²
- a * -2 = -2a
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Multiply 3 by each term inside the second parentheses:
- 3 * a = 3a
- 3 * -2 = -6
Step 2: Combine the terms
Now we have: a² - 2a + 3a - 6
Step 3: Simplify
Combine the like terms (-2a + 3a): a² + a - 6
Final Result
Therefore, the expanded form of (a + 3)(a - 2) is a² + a - 6.
Key Takeaways
- The distributive property is crucial for expanding expressions.
- It involves multiplying each term in one factor by each term in the other factor.
- Remember to combine like terms after expanding.
By understanding the distributive property and applying it to specific expressions, you can confidently simplify and solve algebraic problems.