(x-3)分之x+(x的2次方-3x)分之(x+6)=x分之(x-3)_数学解答

(x-3)分之x+(x的2次方-3x)分之(x+6)=x分之(x-3)

人气：407 ℃　时间：2019-11-09 12:04:36

解答

x/(x-3)+(x+6)/(x²-3x)=(x-3)/xx²/x(x-3)+(x+6)/(x²-3x)=(x-3)/xx²/x(x-3)+(x+6)/x(x-3)=(x-3)/x(x²+x+6)/x(x-3)=(x-3)/xx(x²+x+6)=x(x-3)(x-3)x²+x+6=(x-3)²x²+x+6=x...