Expanding the Expression: (2x + 3)(2x - 3)
This expression represents the multiplication of two binomials. We can expand it using the FOIL method:
First: Multiply the first terms of each binomial. Outer: Multiply the outer terms of the binomials. Inner: Multiply the inner terms of the binomials. Last: Multiply the last terms of each binomial.
Let's apply it to our expression:
- First: (2x) * (2x) = 4x²
- Outer: (2x) * (-3) = -6x
- Inner: (3) * (2x) = +6x
- Last: (3) * (-3) = -9
Now, we combine all the terms:
4x² - 6x + 6x - 9
Notice that the -6x and +6x terms cancel each other out.
Therefore, the simplified answer is:
4x² - 9
This expression is a difference of squares, which is a common pattern in algebra. It follows the general form:
(a + b)(a - b) = a² - b²
In our case, a = 2x and b = 3.