The following steps are used to rewrite the polynomial expression (x+2y)(x-5y) step 1: x(x-5y)+2y(x-5y). step 2: x^2-5xy+2yx-10y^2. step 3: x^2-5xy+2xy-10y^2. step 4: x^2-3xy-10y^2 identify the property used in each of these steps.