x³y-xy³/(x³-2x²y+y²x)=xy(x²-y²)/[x(x²-2xy+y²)]=xy(x+y)(x-y)/[x(x-y)²]=y(x+y)/(x-y)x³-16x/(x²-8x+16)=x(x²-16)/(x-4)²=x(x+4)(x-4)/(x...