化简x分之-x三次方的开方的结果-搜答案-智慧作业帮

√（27/3x³）=√（27·3x/3²x⁴）=√（9²x）/3x²=9√x/3x²=3√x/x²前提：x>0

x-x分之1=3x^2-2+1/x^2=9x^2+1/x^2=11x^4+1=11x^2x^4=11x^2-1x-x分之1=3x^2-1=3xx^2=3x+1x的四次方-2x的三次方-2x的二次方-7

很多题目说的不详细,不清楚我理解的是否与你的题目一样原式=(1+x)[(x-1)/x(x+1)-(1-x)/x(x-1)]=(1+x)[(x-1)/x(x+1)+1/x(x+1)]=(x+1)[(x-

x³=-1/27移项,得x³+1/27=0即x³+(1/3)³=0根据立方和公式,得(x+⅓)(x²-⅓x+1/9)=0∴x+

∵x

X^2(X-1)+X(X-1)+X-XX^3-X^2+X^2-X+X-X-------------------=-----------------=X(X-1)=X^2-XX-1X-1

x(x-1)(x-2)³(x+1)(x-1)(x-1)(x²+x+1)/[(3-4x)(x²+x+2)]>0x(x-1)³(x-2)³(x+1)(x&

(x-1)的三次方等于125分之64(x-1)^3=64/125x-1=4/5x=1+4/5x=9/5再问：x-1=4/5怎么来的？再答：因为64/125=(4/5)^3两边开立方就得到x-1=4/5

√[-x³/(x-1)²]∵分母(x-1)²>0∴-x³>=0∴x³再问：根号-x？再答：是的请点击“采纳为满意答案”,祝学习进步！

1、根号-4a的三次方=-2a√-a2、x分之根号-25x的三次方=5√-x

x^3＋x^3＝2x^3x^3－x^3＝0a^2•（－a^4）＝－a^6－a^2•（－a^4）＝a^6－x•x^2＝－x^3(－x)^2•x^3＝x^5

x+1/x=3,两边平方得x²+1/x²+2=9即x²+1/x²=7x³+1/x³=(x+1/x)(x²-x×1/x+1/x&su

y=x^3/cosx则y'=dy/dx=(3x^2cosx+x^3sinx)/cos^2x所以dy=(3x^2cosx+x^3sinx)/cos^2xdx

x^2＋1)(x^2-1)=x(x^2＋1)(x＋1)(x-1)(2)=(m-n)^2-2(m-n)＋1=(m-n-1)^2(3)=(x^2＋4)^2-(4x)^2=(x^2＋4＋4x)(x^2＋4-

您好：x的三次方(y-x)的三次方-(x-y)的三次方=x的三次方(y-x)的三次方+(y-x)的三次方=（x³+1）(y-x)³=（x+1）（x²-x+1）(y-x)&

(x+y)^3=(x+y)^2*(x+y)=(x^2+2xy+y^2)(x+y)=x^3+3x^2y+3xy^2+y^3

∫x³/(x²+1)dx=∫(x³+x-x)/(x²+1)dx=∫xdx-∫x/(x²+1)dx=(1/2)x²-(1/2)∫1/(x

17x的9次方,上式为2x的9次方-64x的9次方+81x的9次方

原式=2³+(x/3)³=(2+x/3)(4-2x/3+x²/9)再问：8+x³/27=2³+(x/3)³=(2+x/3)(4-2x/3+x

(3x分之y)的平方×(-y分之x)的三次方÷(-x分之2y)方=(y²/9x²)(-x³/y³)(x²/4y²)=-x³/36y