锲犲纺鍒呜В:5x鲁y(x-y)鲁-10x镄勬娆￠潪y镄勪笁娆℃柟(y-x)镄勪簩娆℃柟

锲犲纺鍒呜В:5x鲁y(x-y)鲁-10x镄勬娆￠潪y镄勪笁娆℃柟(y-x)镄勪簩娆℃柟 (y-x)虏-(x+y)(x-y)锲犲纺鍒呜В (x+y)/6+(x-y)/10=1,(x+y)/6-(x-y)/10=5 (x+5y)^+(2x+10y)(3x-y)+(3x-y)^ (x+5y)²-(2x+10y)(3x-y)+(3x-y)² 5x^3y(x-y)^3-10x^4y^3(y-x)^2因式分解 5x^3y(x-y)^3-10x^4y^3(y-x)^2 5X^3Y(X-Y)-10X^4Y^3(Y-X)^2因式分解 分解因式10(x-y)²-5x(y-x) {(x,y) |x|+|y| x>y?x:y (4x-2y-z)-{5x[8y-2y-(x+y)]-x+(3y-10z)]=? kuaihuajian （x+y-5)*（x+y-5)+（x-y+3)=0 x*x-y*y 已知:3x-5y=0,求x/y,x-y/y,x-y/x x+y=5!x-y=-10 x=?,y=?x+y=5!x-y=-10x=?,y=? 化简(x+y)-(2x+y/2)-(3x+y/6)-(4x+y/12)-(5x+y/20)-……-(10x+y/90) 计算：5x/x-y+ 5y/y-x 5x/x-y+5y/y-x