For each expression, write an equivalent expression in standard form. Show your reasoning. (x - 2)( x + 2)

Question

For each expression, write an equivalent expression in standard form. Show your reasoning.
`(x - 2)( x + 2)`

Answer 1

(x - 2) (x+2)

we will expand by opening the parenthesis

x(x+2) - 2(x+2)

x² + 2x - 2x - 4

x² - 4