依题意得:原式=x-2+x^2/x^2÷(x-2)^2/2x
=x-2+x^2/x^2×2x/(x-2)^2
=2x-4+2x^2/x^3-4x^2+4x
当x=0时∵x^2=0^2且无意义∴原式无解
当x=1时∵(x-2)^2无意义∴原式无解
当x=2时∵(x-2)^2无意义∴原式无解
依题意得:原式=4x-8/2x^3-8x^2+8x
当x=0时∵(x-2)^2无意义∴原式无解
当x=1时∵(x-2)^2无意义∴原式无解
当x=2时∵(x-2)^2无意义∴原式无解
依题意得:原式=x-2+x^2/x^2÷(x-2)^2/2x
=x-2+x^2/x^2×2x/(x-2)^2
=2x-4+2x^2/x^3-4x^2+4x
当x=0时∵x^2=0^2且无意义∴原式无解
当x=1时∵(x-2)^2无意义∴原式无解
当x=2时∵(x-2)^2无意义∴原式无解
依题意得:原式=4x-8/2x^3-8x^2+8x
当x=0时∵(x-2)^2无意义∴原式无解
当x=1时∵(x-2)^2无意义∴原式无解
当x=2时∵(x-2)^2无意义∴原式无解