1 ∠a=40°36′,则∠a的余角为------- 2 请写出一个次数为2,项数为3,常数项为 -1的多项式-----------?3 如果|x-y+2|+(2x-1)2=0,那么y-x=----------?4 若多项式5x-4与 -3x+2的值是互为相反数,则x=-----------?5 某练
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/12 02:16:47
![1 ∠a=40°36′,则∠a的余角为------- 2 请写出一个次数为2,项数为3,常数项为 -1的多项式-----------?3 如果|x-y+2|+(2x-1)2=0,那么y-x=----------?4 若多项式5x-4与 -3x+2的值是互为相反数,则x=-----------?5 某练](/uploads/image/z/3842293-13-3.jpg?t=1+%E2%88%A0a%3D40%C2%B036%E2%80%B2%2C%E5%88%99%E2%88%A0a%E7%9A%84%E4%BD%99%E8%A7%92%E4%B8%BA-------+2+%E8%AF%B7%E5%86%99%E5%87%BA%E4%B8%80%E4%B8%AA%E6%AC%A1%E6%95%B0%E4%B8%BA2%2C%E9%A1%B9%E6%95%B0%E4%B8%BA3%2C%E5%B8%B8%E6%95%B0%E9%A1%B9%E4%B8%BA+-1%E7%9A%84%E5%A4%9A%E9%A1%B9%E5%BC%8F-----------%3F3+%E5%A6%82%E6%9E%9C%7Cx-y%2B2%7C%2B%EF%BC%882x-1%EF%BC%892%3D0%2C%E9%82%A3%E4%B9%88y-x%3D----------%3F4+%E8%8B%A5%E5%A4%9A%E9%A1%B9%E5%BC%8F5x-4%E4%B8%8E+-3x%2B2%E7%9A%84%E5%80%BC%E6%98%AF%E4%BA%92%E4%B8%BA%E7%9B%B8%E5%8F%8D%E6%95%B0%2C%E5%88%99x%3D-----------%3F5+%E6%9F%90%E7%BB%83)
xTNA~IHz PbkpD!5Mċ(,*(AO& 3WB BgfϜ}|gɕ0kjd~EbT؎sG}M[ۿ!
Ա١ 2dkX