发布网友 发布时间:2024-10-23 22:03
共2个回答
热心网友 时间:5小时前
:(×^2-4y^2/x^2+4x+4)*(x+2/3x^2+6xy)
=(x+2y)(x-2y)/(x+2)^2*(x+2)/3x(x+2y)
=[(x-2y)/(x+2)]*1/3x
=(x-2y)/3x(x+2)
热心网友 时间:5小时前
×^2-4y^2/x^2+4x+4乘x+2/3x^2+6xy
=(x+2y)(x-2y)/(x+2)^2*(x+2)/3x(x+2y)
=2(x-2y)/3x(x+2)