Expanding the Expression (2x-3)(2x+3)
This expression involves the multiplication of two binomials, which can be expanded using the FOIL method. FOIL stands for First, Outer, Inner, Last, and it outlines the steps to multiply the terms in the binomials.
Step 1: First
Multiply the first terms of each binomial: (2x) * (2x) = 4x²
Step 2: Outer
Multiply the outer terms of each binomial: (2x) * (3) = 6x
Step 3: Inner
Multiply the inner terms of each binomial: (-3) * (2x) = -6x
Step 4: Last
Multiply the last terms of each binomial: (-3) * (3) = -9
Combining the Terms
Now we have all the terms, and we can combine them:
4x² + 6x - 6x - 9
Notice that the 6x and -6x terms cancel each other out.
Final Answer
Therefore, the expanded form of (2x-3)(2x+3) is:
4x² - 9
This result is a difference of squares, a common pattern in algebra.