what is the answer to (x-2)(x+2)
(x - 2)(x + 2)(x² + 2x - 2x - 4)x² - 4
Using FOIL (First, Inside, Out, Last), you have to multiply. First: multiply x and x Outside: Multiply x and +2 Inside: Multiply -2 and x Last: Multiply -2 and +2. Finally, add it all together, and you will get x^2-4
