化简 X+Y分之X^2减Y^2
问题描述:
化简 X+Y分之X^2减Y^2
答
X+Y分之X^2减Y^2
=X+Y分之(X+Y)(X-Y)
=X-Y
化简 X+Y分之X^2减Y^2
X+Y分之X^2减Y^2
=X+Y分之(X+Y)(X-Y)
=X-Y