Expanding the Expression (a + 2)(a + 4)
This article will guide you through expanding the expression (a + 2)(a + 4) using the FOIL method.
What is FOIL?
FOIL stands for First, Outer, Inner, Last. It is a mnemonic device to help remember how to multiply two binomials.
Expanding the Expression:
- First: Multiply the first terms of each binomial: a * a = a²
- Outer: Multiply the outer terms of the binomials: a * 4 = 4a
- Inner: Multiply the inner terms of the binomials: 2 * a = 2a
- Last: Multiply the last terms of the binomials: 2 * 4 = 8
Now, combine all the terms: a² + 4a + 2a + 8
Finally, simplify by combining like terms: a² + 6a + 8
Conclusion
Therefore, the expanded form of (a + 2)(a + 4) is a² + 6a + 8. By following the FOIL method, you can easily expand any two binomials.