重庆人民行长历任行长:解答数学题

来源:百度文库 编辑:查人人中国名人网 时间:2024/05/05 16:41:31
ab+2ac-ac

ab+2ac-ac
=ab+ac
=a(b+c)

a(b+c)

ab+2ac-ac
=ab+ac
=a(b+c)

ab+ac

=AB+AC

ab+2ac-ac=a(b+2c-c)=a(b+c)