解方程和计算题求解解方程:2x-2\3减x-1\3=3;计算:(a^2-4a+4\a^2-4加a+2\2-a)除以a-2\a;
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![解方程和计算题求解解方程:2x-2\3减x-1\3=3;计算:(a^2-4a+4\a^2-4加a+2\2-a)除以a-2\a;](/uploads/image/z/2580627-3-7.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%E5%92%8C%E8%AE%A1%E7%AE%97%E9%A2%98%E6%B1%82%E8%A7%A3%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%9A2x-2%5C3%E5%87%8Fx-1%5C3%3D3%EF%BC%9B%E8%AE%A1%E7%AE%97%EF%BC%9A%28a%5E2-4a%2B4%5Ca%5E2-4%E5%8A%A0a%2B2%5C2-a%29%E9%99%A4%E4%BB%A5a-2%5Ca%EF%BC%9B)
解方程和计算题求解解方程:2x-2\3减x-1\3=3;计算:(a^2-4a+4\a^2-4加a+2\2-a)除以a-2\a;
解方程和计算题求解
解方程:2x-2\3减x-1\3=3;
计算:(a^2-4a+4\a^2-4加a+2\2-a)除以a-2\a;
解方程和计算题求解解方程:2x-2\3减x-1\3=3;计算:(a^2-4a+4\a^2-4加a+2\2-a)除以a-2\a;
[(a+1)(a+2)/(a^2-4a+4)-a/(a^2-2a)]/[a/(a-2)]
=[(a+1)(a+2)/(a-2)^2-a/a(a-2)]/[a/(a-2)]
=[(a+1)(a+2)/(a-2)^2-1/(a-2)]*(a-2)/a
=(a+1)(a+2)/(a-2)^2*(a-2)/a-1/(a-2)*(a-2)/a
=(a+1)(a+2)/a(a-2) -1/a
=(a+1)(a+2)/a(a-2) -(a-2)/a(a-2)
=[(a+1)(a+2) -(a-2)]/a(a-2)
=(a^2+3a+2-a+2)/a/(a-2)
=(a^2+2a+4)/a(a-2)