代数式简化 1(5a+3b)+(3a-2b) 2 2(4x-6y)-3(2x+3y-1)
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 20:50:40
x){{i4{:L45u44L*t*5u5*+u
5m_`gCXm`!E6QH[
]CJ]
]JmcQ!_\gu
`]OuYIa.jBu~
uL|hbg>bSf>H w
代数式简化 1(5a+3b)+(3a-2b) 2 2(4x-6y)-3(2x+3y-1)
代数式简化 1(5a+3b)+(3a-2b) 2 2(4x-6y)-3(2x+3y-1)
代数式简化 1(5a+3b)+(3a-2b) 2 2(4x-6y)-3(2x+3y-1)
1(5a+3b)+(3a-2b)
=5a+3b+3a-2b
=8a+b
2 2(4x-6y)-3(2x+3y-1)
=8x-12y-6x-9y+3
=2x-21y+3
1(5a+3b)+(3a-2b) 2
原式=5a+3b+6a-4b=11a-b
2(4x-6y)-3(2x+3y-1)
原式=8x-12y-6x-9y+3=2x-21y+3
ps:我题目应该没理解错吧?