(x+y)^5÷(x-y)^2÷(x+y) =(x+y)^5÷(x+y)÷(x-y)^2=(x+y)^4÷(x-y)^2=(x+y)^4/(x-y)^2
(x+y)^5÷(x-y)^2÷(x+y)=(x+y)^5÷(x+y)÷(x-y)^2=(x+y)^4÷(x-y)^2 =(x+y)^4/(x-y)^2