化简:
(1)[(x+2y)(x-2y)-(2x-y)
2+(3x-y)(2x-5y)]÷(-
x);
(2)(-4x
2+12x
3y
2-16x
4y
3)÷(-4x
2)-(-2xy
2-y)(-2xy-1).
人气:450 ℃ 时间:2019-08-19 15:14:40
解答
(1)[(x+2y)(x-2y)-(2x-y)2+(3x-y)(2x-5y)]÷(-12x),=(x2-4y2-4x2-y2+4xy+6x2+5y2-17xy)÷(-12x),=(3x2-13xy)÷(-12x),=-6x+26y;(2)(-4x2+12x3y2-16x4y3)÷(-4x2)-(-2xy2-y)(-2xy...
推荐
猜你喜欢
- dear teachers and students,welcome to today's english speech contest, it's a great honor for us to
- 东吴 曹操 周瑜 黄盖 诸葛亮 哪个不同类?
- 十寸照片有多大
- 小明收集的邮票比小红多24张,小红收集的邮票是小明的2/3,小明小红个收集多少张?(题目要求列方程解答)
- 这学期,我们全家参加了少先队,改病句
- 一个四边形木框,AB=8cm,BC=6cm,CD=4cm,AD=5cm,它的形状是不稳定的,求BD的范围,
- ______ it is you’ve found, you must give it back to the person it belongs to.
- Mokeys and tiger live in the j----