10a^29x+y0-5a(x+y)^2
问题描述:
10a^29x+y0-5a(x+y)^2
答
10a^2(x+y)-5a(x+y)^2
=5a(x+y)(2a-x-y)
10a^29x+y0-5a(x+y)^2
10a^2(x+y)-5a(x+y)^2
=5a(x+y)(2a-x-y)