解决西诶些诶诶i1.a²-b²=12,a-b=2,求a的b方-b的a方2.a²b²+a²+b²+1=4ab,求a、b计算3.20042003²—————————————————20042002²+20042004²-24.(x²+1)(y²+1
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/21 00:23:53
![解决西诶些诶诶i1.a²-b²=12,a-b=2,求a的b方-b的a方2.a²b²+a²+b²+1=4ab,求a、b计算3.20042003²—————————————————20042002²+20042004²-24.(x²+1)(y²+1](/uploads/image/z/13628289-57-9.jpg?t=%E8%A7%A3%E5%86%B3%E8%A5%BF%E8%AF%B6%E4%BA%9B%E8%AF%B6%E8%AF%B6i1.a%26sup2%3B-b%26sup2%3B%3D12%2Ca-b%3D2%2C%E6%B1%82a%E7%9A%84b%E6%96%B9-b%E7%9A%84a%E6%96%B92.a%26sup2%3Bb%26sup2%3B%2Ba%26sup2%3B%2Bb%26sup2%3B%2B1%3D4ab%2C%E6%B1%82a%E3%80%81b%E8%AE%A1%E7%AE%973.20042003%26sup2%3B%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%94%E2%80%9420042002%26sup2%3B%2B20042004%26sup2%3B-24.%EF%BC%88x%26sup2%3B%2B1%EF%BC%89%EF%BC%88y%26sup2%3B%2B1)
解决西诶些诶诶i1.a²-b²=12,a-b=2,求a的b方-b的a方2.a²b²+a²+b²+1=4ab,求a、b计算3.20042003²—————————————————20042002²+20042004²-24.(x²+1)(y²+1
解决西诶些诶诶i
1.a²-b²=12,a-b=2,求a的b方-b的a方
2.a²b²+a²+b²+1=4ab,求a、b
计算3.20042003²
—————————————————
20042002²+20042004²-2
4.(x²+1)(y²+1)=4xy,求x²-5y+1
解决西诶些诶诶i1.a²-b²=12,a-b=2,求a的b方-b的a方2.a²b²+a²+b²+1=4ab,求a、b计算3.20042003²—————————————————20042002²+20042004²-24.(x²+1)(y²+1
1.(a+b)=6,(a-b)=2 得出 a=4,b=2.4*4-2*2*2*2 = 0
2.(a²-2ab+b²) + [(ab)² -2ab + 1] = 0 得出 a-b =0,ab-1=0.继而a=b=1或-1
3.=20042003²/[(20042002²-1) + (20042004²-1)]
继续:=20042003²/[(20042002+1)(20042002-1) + (20042004+1)(20042004-1)]
继续:=20042003²/[20042003*(20042002-1) + 20042003*(20042004+1)]
继续:=20042003/(20042001+20042005)
继续:=20042003/40084006
结果:=1/2
4.x²y²+x²+y²+1=4xy
继续:(x-y)² + (xy-1)² = 0
继续:x=y,xy=1
继续:x和y可以为正负1
继续:x²-5y+1 = -3(x=1)或者 7(x=-1)