通分
3/2x²与2/x²-x
解,得:
他们变形后得
3/2x^2 2/x(x-1)
通分后得
3x(x-1)/2x^2(x-1)4x^2/2x^2(x-1)没看懂,你能用画图的方式写出来吗,谢谢通分3/2x²与2/x²-x解,得:他们变形后得 3/2x^22/x(x-1)通分后得 3x(x-1)4x^2------------ (分母分子同时乘以x(x-1)) -----------(分子分母同时乘以2x^2)2x^2(x-1) 2x^2(x-1)题目打错了,应该是3/2x²+2x与2/x²-x3/2x²+2x与2/x²-x解,得: 通分 3/2x?+2x与2/x?-x 解,得: 他们变形后得 3/2x(x+1)2/x(x-1) 通分后得 3(x-1) 4(x+1) ------------ (分母分子同时乘以(x-1)) -----------(分子分母同时乘以2(x+1)) 2x(x-1)(x+1)2x(x-1)(x+1)