1,2(4x-5) 2,-3(1-1/6x) 3,-x+(2x-2)-(3x
问题描述:
1,2(4x-5) 2,-3(1-1/6x) 3,-x+(2x-2)-(3x
1,2(4x-5)
2,-3(1-1/6x)
3,-x+(2x-2)-(3x+5)
4.3a+a-(2a-2a)+(3a-a)
答
1:8x-102:-3+1/2x3:2x-2-3x-5=-x-74:4a平方-2a平方+2a+3a-a平方
=a平方+5a第1,2两题没看懂诶1:2乘以4x=8x
2乘以-5=-10
所以=8x-102:-3乘以1=-3
-3乘以-1/6x=1/2x哦,谢谢