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(x²;-4分之2x)+(x-2分之1)=x+2分之x+32x/(x²;-4)+1/(x-2)=(x+3)/(x+2);2x+x+2=(x+3)(x-2);3x+2=x²;+x-6;x²;-2x-8=0;(x-4)(x+2)=0;x=4或x=-2;代入檢驗x=-2是增根;所以x=4;手機提問的朋友在用戶端…
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