怎样投诉旅游局:猪都会的数学题
来源:百度文库 编辑:查人人中国名人网 时间:2024/05/13 20:10:39
(5Y—1)(-1—5Y)=?
原式=-(5y-1)(1+5y)
=-(5y-1)(5y+1)
=-[(5y)(5y)-1]
=1-25yy
猪都会做,那你怎么还问?
难道你...?
原式=-(5y-1)(1+5y)
=-(5y-1)(5y+1)
=-[(5y)(5y)-1]
=1-25yy
猪都会做,那你怎么还问?
难道你...?