化简.(3x^2/x+y)^3*(x^2-y^2)÷(X-Y/X+Y)^2,
问题描述:
化简.(3x^2/x+y)^3*(x^2-y^2)÷(X-Y/X+Y)^2,
答
(3x^2/x+y)^3*(x^2-y^2)÷(X-Y/X+Y)^2
=(27x^6/(x+y)^3 X (x+y)(x-y ) X (X+Y)^2/(X-Y)^2
=27x^6/(x-y)