作业帮x^25÷[(-x^2)^3]^4×(-x^3)^2÷(-x^2)^5如题
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x^25÷[(-x^2)^3]^4×(-x^3)^2÷(-x^2)^5如题
x^25÷[(-x^2)^3]^4×(-x^3)^2÷(-x^2)^5
如题
x^25÷[(-x^2)^3]^4×(-x^3)^2÷(-x^2)^5如题
x^25÷[(-x^2)^3]^4×(-x^3)^2÷(-x^2)^5
=x^25÷(-x)^2*3*4×(-x)^3*2÷(-x)^2*5
=x^25÷x^(2*3*4)×x^3*2÷(-x)^2*5
=x^(25-24+6-2*5)
=x^(-3)
=1/(x^3)
x^25÷[(-x^2)^3]^4×(-x^3)^2÷(-x^2)^5
=x^25÷[-x^6]^4×x^6÷(-x^10)
=x^25÷(x^24)×x^6÷(-x^10)
=x^(25-24+6)÷(-x^10)
=x^7÷(-x^10)
=-x^-3
[x^2+2x-8/x^3+2x^2+x]÷[(x-2/x)×(x+4/x+1)]化简[x^2+2x-8/x^3+2x^2+x]÷[(x-2/x)×(x+4/x+1)]化简
x-2x+3x-4x+5x.+99x-100x=25求解
*-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X ||
化简 [3x/(x+2)-x/(x=2)]÷x/(x^2-4)化简 [3x/(x+2)-x/(x-2)]÷x/(x^2-4
3x/(x-2)-x/(x+2)÷2x/(x-4)化简3x/（x-2）-x/(x+2)÷2x/(x²-4)化简
(x+1-1/1-x)÷(x-x²/x-1) (x-4/x-x-6+ x+2/x-3)÷x+1/x-3
(2x-6)/(x²-4x+4)÷(3-x)/(x²+6x+9)×(2-x)/(x+3)
（x+1)(x+2)(x+3)(x+4）+1(x+1)(x-2)(x+3)(x-4)+25
求解 化简(3x/x-2-x/x+2)÷2x/x平方-4
解方程:x-2x+3x-4x+...+99x-100x=25
解方程：x-2x+3x-4x+.+99x-100x=25
x-2x+3x-4x+...+99x-100x=25
0.3+0.3x=0.39 x= 2x-1.5x=7.6x x= 0.36x÷0.3=1.2 x=6（x+1.2)=18.6 x= 7x+2x = 8.1 x= (x-5）÷3=1.7 x=5（x+1.1)=15.5 x= 9x+25=70 x= 7x-4x=2.1 x=
x^2-x/x+1÷x/x+1 ；x^2+6x+9/x^2-9÷x+2/x-3；2/a÷4/a
x+x÷2+x÷3+x÷4=25这个方程怎么算
2x^2-4x/x+2`x^2+2x/x^2-4x+4÷x/3x-6,其中x=根号3/2
2x^2-4x/x+2`x^2+2x/x^2-4x+4÷x/3x-6,其中x=根号3/2
x^25÷[(-x^2)^3]^4×(-x^3)^2÷(-x^2)^5如题