5a²b-3ab²-2(2a²b-ab²)
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/20 17:01:24
5a²b-3ab²-2(2a²b-ab²)
![5a²b-3ab²-2(2a²b-ab²)](/uploads/image/z/16681505-41-5.jpg?t=5a%26%23178%3Bb-3ab%26%23178%3B-2%282a%26%23178%3Bb-ab%26%23178%3B%29)
5a²b-3ab²-2(2a²b-ab²)
=5a²b-3ab²-4a²b+2ab²
=(5a²b-4a²b)+(2ab²-3ab²)
=a²b-ab²
=5a²b-3ab²-4a²b+2ab²
=(5a²b-4a²b)+(2ab²-3ab²)
=a²b-ab²
已知ab²=6,求ab(a^2b^5-ab^3-b)的值
3ab+3b²/b(a²+2ab+b²) ×a²-b²/a-b ÷b/
3a²b+ab²-2a²b²-3ab²-3a²b+4ab
a+b=3 a-b=5求ab【b²+b】-b²【ab+2a】-3ab的值
①-2a²(二分之一ab+b²)-5a(a²b-ab²)
化简求值:3a²b-[2ab²-2(-a²b+4ab²)]-5ab²,
已知(a-2)(b-3)-a(b-5)=22 求(a²+b²;/ab)-ab的值
(9a²-6ab+b²)/(3a²-ab),其中b/a=2
a³+a²b-(4a²b+3ab²)+b³+6ab²+2b&
(a+b/a-b)²×2a-2b/3a+3b÷ab/a²-b²
已知a²+b²+2a-4b+5=0,则a²-2ab-3b²/a(a-b)+3ab
已知A=5a²b+2a四次方-3a²b-ab³,B=6ab³-8a³b