Expanding and Simplifying the Expression: (a+3)(a-2)+(a-3)(a+6)
This article will guide you through the process of expanding and simplifying the given algebraic expression: (a+3)(a-2)+(a-3)(a+6).
Understanding the Problem
We have a sum of two products of binomials. To simplify this expression, we need to:
- Expand each product of binomials using the distributive property or FOIL method.
- Combine like terms.
Expanding the Binomials
-
(a+3)(a-2)
Using the FOIL method (First, Outer, Inner, Last):
- First: a * a = a²
- Outer: a * -2 = -2a
- Inner: 3 * a = 3a
- Last: 3 * -2 = -6
Combining like terms: a² + a - 6
-
(a-3)(a+6)
Using the FOIL method:
- First: a * a = a²
- Outer: a * 6 = 6a
- Inner: -3 * a = -3a
- Last: -3 * 6 = -18
Combining like terms: a² + 3a - 18
Combining Like Terms
Now we have: (a² + a - 6) + (a² + 3a - 18)
Combining like terms, we get:
2a² + 4a - 24
Final Answer
Therefore, the simplified form of the expression (a+3)(a-2)+(a-3)(a+6) is 2a² + 4a - 24.