>
数学
>
计算2x^2y·(-8y^2)+4x^2y·5y^2
人气:483 ℃ 时间:2019-12-26 07:43:40
解答
2x^2y·(-8y^2)+4x^2y·5y^2
=x^2y*y^2[2*(-8)+4*5]
=x^2y*y^2*4
=4x^2y*y^2
推荐
解方程组(1)3X+4Y=10 6X+8Y=8 (2)2X-5Y=3 4X-Y=6 (3)3X-5Y=10 5X+2Y=15
计算:-4x-3(x+2y)+5y=_.
(4.5*10^5)(2*10^3)(3*10^4)&2x^2y(-8y^2)+4x^2y*5y^2&(x+3y)(2x-y)
计算 第一题:(2x+y+z)的平方 第二题:(4x-5y)的平方(4x+5y)的平方 第三题:(x+2y-1)(2y-x-1)
4x^3y^2(2x^2-3xy+5y^2)÷(-4x^2y^2)计算
AgcL在K2SO4中溶解度是增大还是减小
if [a] indicates the greatest integer less than a,then
in the western countries,most of the children ____their father
猜你喜欢
19乘12乘19分之1 (3分之1加7分之1)乘21
汽车驾驶员改进驾驶技术后,每行驶200km可节约汽油7.2L.如果行驶12000km,可以节约汽油多少升?
仿句 示例:生命就要像蝉一样,即使短暂,也要固执地等待.句子:生命?
.以'梦'字为尾的四字词或诗..或者比较伤感含韵点的也可以.最好是尾字带'梦'字的.
鹊踏枝 冯延巳 背景简介
To make his dream come true,Luffy has to reach the end of the most dangerous ocean.He follows the way of the dead King u
甲烷燃烧要放出热量,水的分解要吸收能量,试从化学键的角度分析原因.
It ___(rain)for half a day and I don't think it _____(last)long.
© 2025 79432.Com All Rights Reserved.
电脑版
|
手机版