分解因式:(1)1+10t+25t² (2)m²² -14m+49 (3)y²+y+4/1
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 18:31:10
![分解因式:(1)1+10t+25t² (2)m²² -14m+49 (3)y²+y+4/1](/uploads/image/z/4090387-67-7.jpg?t=%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F%EF%BC%9A%EF%BC%881%EF%BC%891%2B10t%2B25t%26%23178%3B+%EF%BC%882%EF%BC%89m%26%23178%3B%26%23178%3B+-14m%2B49+%283%29y%26%23178%3B%2By%2B4%2F1)
分解因式:(1)1+10t+25t² (2)m²² -14m+49 (3)y²+y+4/1
分解因式:(1)1+10t+25t² (2)m²² -14m+49 (3)y²+y+4/1
分解因式:(1)1+10t+25t² (2)m²² -14m+49 (3)y²+y+4/1
:(1)1+10t+25t² =(1+5t)²
(2)m²² -14m+49=(m-7)²
(3)y²+y+4/1=(y+1/2)²
1、﹙1+5t﹚²
2、﹙m-7﹚²
3、﹙y+1/2﹚²
2、3两题是不是写错?
利用公式a^2+2ab+b^2=(a+b)^2