x²-9/x²-3x化简是多少
问题描述：
x²-9/x²-3x化简是多少
答
x²-9/x²-3x=(x+3)(x-3)/x(x-3)=x+3/x 希望能帮到你
答
=(x+3)(x-3)/x(x-3)
=(x+3)/x
答
x²-9/x²-3x
=(x-3)(x+3)/x(x-3)
=(x+3)/x