根号(x+y)+根号(x-y)/根号(x+y)-根号(x-y)分解因式
问题描述:
根号(x+y)+根号(x-y)/根号(x+y)-根号(x-y)分解因式
答
根号(x+y)+根号(x-y)/根号(x+y)-根号(x-y)=√(x+y)+√(x-y)/√(x+y)-√(x-y)=(√(x+y)+√(x-y))(√(x+y)+√(x-y))/(√(x+y)+√(x-y))(√(x+y)-√(x-y))=(x+y+2√(x^2-y^2)+x-y)/...