(x+y)²-16(x-y)²因式分解
人气:371 ℃ 时间:2020-02-01 06:46:12
解答
=(x+y)²-[4(x-y)]²
=(x+y+4x-4y)(x+y-4x+4y)
=(5x-3y)(5y-3x)
推荐
猜你喜欢
- 修改病句 Why does a UFO work?
- 关于 What would you do if you had a million dollars
- 我再向外看时,他已抱了朱红的橘子往回走了.过铁道时,他先把橘子散放在地上,自己慢慢爬下,再抱起橘子走.近几年来,父亲和我都是东奔西走,家中光景是一日不如一日.
- 质量相同的木块和铁块放入水中,静止后受到浮力大的是?为什么?
- 急急急急急 一个长方体的长是12CM,宽是5CM,体积是360CM3.这个长方体的表面积是多少?
- 一条路全长30千米,分上坡,平坡和下坡三段,各段路程长的比是1:2:3,某人走各段路程所用时间比是4:5:6
- may,may be,maybe,probably,possible,might等表可能的区别以及用法
- ___he couldn’t understand was ___,as a teacher of Chinese ,he was asked to teach English.