16 Dec Difference of Two Squares
Difference of Two squares </b> Let us start by expanding (x+y)(x-y): (x+y)(x-y) = x² -xy +xy -y² = x² - y² This means that x² - y² = (x-y)(x+y) The above expression gives us a method for working out the difference of two squares. This expression can be written in words as: <b>The difference...