计算：-3x+(x-1)-(3x-3)= 2(a-2)-3(a+1)= -(5a-4b)+2(a-2b)=-3x+(x-1)-(3x-3)= 2(a-2)-3(a+1)=-(5a-4b)+2(a-2b)=

来源：学生作业帮助网 编辑：作业帮 时间：2024/05/09 23:53:57
计算：-3x+(x-1)-(3x-3)= 2(a-2)-3(a+1)= -(5a-4b)+2(a-2b)=-3x+(x-1)-(3x-3)= 2(a-2)-3(a+1)=-(5a-4b)+2(a-2b)=

计算：-3x+(x-1)-(3x-3)= 2(a-2)-3(a+1)= -(5a-4b)+2(a-2b)=-3x+(x-1)-(3x-3)= 2(a-2)-3(a+1)=-(5a-4b)+2(a-2b)=
计算：-3x+(x-1)-(3x-3)= 2(a-2)-3(a+1)= -(5a-4b)+2(a-2b)=
-3x+(x-1)-(3x-3)=
2(a-2)-3(a+1)=
-(5a-4b)+2(a-2b)=

计算：-3x+(x-1)-(3x-3)= 2(a-2)-3(a+1)= -(5a-4b)+2(a-2b)=-3x+(x-1)-(3x-3)= 2(a-2)-3(a+1)=-(5a-4b)+2(a-2b)=
-3x+(x-1)-(3x-3)
=-3x+x-1-3x+3
=-5x+2
2(a-2)-3(a+1)
=2a-4-3a-3
=-a-7
-(5a-4b)+2(a-2b)
=-5a+4b+2a-4b
=-3a

-5x+2,-a-7,-3a,去括号时注意变号

计算:x/(1-x)-1/(x-3) 计算:|3-x|+|x-1|(x>5) 计算1/[x(x+3)]+1/[(x+3)(x+6)]+.+1/[(x+15)(x+18)]=? 3-x=1/x如何计算 计算x(x+3)=1 计算：(3/x)+(x/x²-1)-(4/1-x) 计算2x X 4x--3x= 计算(x+1)(x+2)(x+3)(x+4) 计算：（x+1)(x-2)(x-3)(x-6) 计算 x(x+3)-(x-1)(x-2） 如何计算 (x+1)(x+2)(x+3)(x+4) 计算(X-1)(X-2)(X-3)(X-4) (x-1)(x-2)(x-3)(x-4)-24计算 计算：x/(x-1)-(x+3)/(x^-1)*(x^2+2x+1)/(x+3) 计算:[(x^2 - 4)/(x^2 - x - 6) + (x+2)/(x-3)] / (x+1)/(x-3) 计算：1-2x+x^2/x-x^3*xy+x^2y/x-x^2 计算：(x+1)x=7 (x-1)(x+2)=30 (3-x)(3-x)+x=9 计算当x=-1/3时,代数式(3x/x-1 - x/x+1)除以x/x²-1