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:2024/06/21 01:15:58
![代数式简化 1(5a+3b)+(3a-2b) 2 2(4x-6y)-3(2x+3y-1)](/uploads/image/z/2585967-15-7.jpg?t=%E4%BB%A3%E6%95%B0%E5%BC%8F%E7%AE%80%E5%8C%96+1%EF%BC%885a%2B3b%29%2B%283a-2b%29+2+2%284x-6y%29-3%282x%2B3y-1%29)
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?