这么写对不对if((x-2)*(x-2)+(y-2)*(y-2)

xy-x^2/(x-y)^2=x/x-y对不对?不对写出正确答案 #includemain(){int x=1,y=2,z=3;if(x>y)if(y int x=1,y=0; if(!x)y++; else if(x==0) if(x)y+=2; else y+=3; 1、x(x-y)(x+y)-x(x+y)^2 幂函数我这里有一个考纲,上面是这么写的,了解幂函数的概念,结合函数y=x,y=x^2,y=x^3,y=1/x,y=x^1 (1)(x^2/x)-y-x-y 1 int x=1,y=0; 2 if(!x) y++; 3 else if(x==0) 4 if(x) y+=2; 5 【(x-y)^2+(x+y)(x-y)】除以 2x 因式分解 (x+y)^2-x^2y^2 怎么写 [(-x-y)(-x+y)-(x+y)^2-x(y-y^2)}÷1/2y x^2-y^2/x+y-4x(x-y)+y^2/2x-y, (x+y)^2(x-y)^2-(x-y)(x+y)(x^2+y^2)分解因式