利用因式分解简便计算:(1)2011²-4024 (2)2011+1011²-2012².....(1)2012²-4024
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/12 00:26:29
![利用因式分解简便计算:(1)2011²-4024 (2)2011+1011²-2012².....(1)2012²-4024](/uploads/image/z/378280-64-0.jpg?t=%E5%88%A9%E7%94%A8%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%EF%BC%9A%EF%BC%881%EF%BC%892011%26%23178%3B-4024+%EF%BC%882%EF%BC%892011%2B1011%26%23178%3B-2012%26%23178%3B.....%EF%BC%881%EF%BC%892012%26%23178%3B-4024)
x){ڱOg/xiGۋ募kxou~Ϭ{:4204TS645102Q
A
r@FHmig1t|qE5:<b1Dd3P@ U(f54 tc:p(b2 l@q eG
利用因式分解简便计算:(1)2011²-4024 (2)2011+1011²-2012².....(1)2012²-4024
利用因式分解简便计算:(1)2011²-4024 (2)2011+1011²-2012²
.....(1)2012²-4024
利用因式分解简便计算:(1)2011²-4024 (2)2011+1011²-2012².....(1)2012²-4024
(1)2011²-4024
=2011²-2×2011+1-3
=(2011-1)²-3
=2010²-3
=4040100-3
=4040097
(2)2011+2011²-2012²
=2011×(1+2011)-2012²
=2011×2012-2012²
=2012×(2011-2012)
=-2012