3分之x三次方 x²分之48=10(3分之x-x分之4)-搜答案-拍题作业网

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

x平方-3x+1=0--------x平方=3x-1x^3=x*（x方）=x（3x-1）=3x方-x=3（3x-1）-x=8x-3x^4=(x平方)的方=（3x-1）方=9x方-6x+1=9（3x-1

A-B/2=2X^3+3X^2-X-(2X^3+4X^2-X+3)=-X^2-3=-1/4-3=-13/4

x四次方-6x三次方+9x二次方分之x二次方-3x=x(x-3)/x²（x²-6x+9）=(x-3)/x(x-3)²=1/x(x-3)=1/(x²-3x)如追加

1,(27/8)x的3次方+9/8x的平方y+3/16y的平方x+8/y的3次方2,64a的6次方-40ba的四次方+25a方b方-125b的3方/8

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的平方—3x+1=0x-3+1/x=0x+1/x=3两边平方x²+1/x²+2=9x²+1/x²=7x的四次方+3x的二次方+1分之x的平方（题目应该有误）=

根据立方差公式a³-b³=(a-b)(a²+ab+b²)可得(x²+3x+9)/(x³-27)+6/(9-x²)-(x-1)/(6

9-61*√5/5

两边乘4(2x+3)³=64=4³2x+3=4x=1/2

X平方+3X+1=0两边除以x,x+3+1/x=0x+1/x=-3,两边平方x^2+1/x^2+2=9,x^2+1/x^2=9-2=7

原式=(x+1)//(x²+1)*(x²+1)(x+1)(x-1)/(x+1)³-(x-3)/(x+1)=(x-1)/(x+1)-(x-3)/(x+1)=(x-1-x+3

y=x^3/3-(a+1)x^2+4ax+by'=x^2-2(a+1)x+4ay'=(x-2a)(x-2)当a>1时x>2a或x0(x≠2))函数单调增当a2或x

x三次方-x+x+1分之1-x四次方=x(x²-1)-(x²+1)(x²-1)/(x+1)=x(x²-1)-(x²+1)(x+1)(x-1)/(x+1

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

再答：求采纳

∵（x+4)/(x²+2x-3)=A/(x-1)+(Bx+C)/(x²+2x-3)∴两边乘以（x²+2x-3),得x+4=A(x+3)+Bx+Cx+4=(A+B)x+(3

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

2分之1(X-3)的三次方+19=-131/2(X-3)^3=-32(X-3)^3=-64X-3=-4X=3-4X=-1

(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