4x+4*1.25x=360

4x+x×1.25x=360(解方程)4x+x×1.25x=360(解方程)4x+x×1.25x=360(解方程)1.25x^2+4x-360=05x^2+16x-1440=0x1,2=[-16土√(

4*1.25x+4x=3604*1.25x+4x=3604*1.25x+4x=360是不是求X5x+4x=3609x=360x=40

(x+1.25x)乘4=360,(x+1.25x)乘4=360,(x+1.25x)乘4=360,2.25x×4=3602.25x=360÷42.25x=90x=90÷2.25x=40

4（x+1.25x）=3604（x+1.25x）=3604（x+1.25x）=360x十1.25x=902.25x=90x=404x+5x=3609x=360x=360÷9x=40=4（2.25X）=

一个“整式的乘法”的问题请先阅读下列解题过程,再仿做下面的问题.已知X*X+X-1=0,求X*X*X+2*X*X+3的值.解X*X*X+2X*X+3=X*X*X+X*X-X+X*X+X+3=X{X*X

x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4

3/(7X)+4/7(1.25X)=1/X3/(7X)+4/7(1.25X)=1/X3/(7X)+4/7(1.25X)=1/X3/(7X)+4/7(1.25X)=1/X-8两边同乘以7*1.25x,3

210-x=360-4x,求x210-x=360-4x,求x210-x=360-4x,求x210-x=360-4x3x=150所以x=50

x-2x+3x-4x+5x.+99x-100x=25求解x-2x+3x-4x+5x.+99x-100x=25求解x-2x+3x-4x+5x.+99x-100x=25求解x(1-2+3-4+...+99

先化简,再求值：（x-2/x-x+2/x)/x-2/4x,x=2011先化简,再求值：（x-2/x-x+2/x)/x-2/4x,x=2011先化简,再求值：（x-2/x-x+2/x)/x-2/4x,x

2x+3x+4x+5x+x+6x+7x=1002x+3x+4x+5x+x+6x+7x=1002x+3x+4x+5x+x+6x+7x=1002x+3x+4x+5x+x+6x+7x=10028x=100x

(x/x-2)+(2/x*2+2x)-(x+6/x*2-4)化简,=x^2/x(x-2)+(2x-4)/x(x^2-4)-(x^2+6x)/x(x^2-4)=x^2/x(x-2)-(x+2)/x(x-

(x-3/x-2)-(x-2/x-1)=(x-5/x4)-(x-4/x-3)(x-3/x-2)-(x-2/x-1)=(x-5/x4)-(x-4/x-3)(x-3/x-2)-(x-2/x-1)=(x-5

x(x+1)+(x+2)+(x+3)+(x+4)+(x+5)=27求xx(x+1)+(x+2)+(x+3)+(x+4)+(x+5)=27求xx(x+1)+(x+2)+(x+3)+(x+4)+(x+5)

提取公因式:已知x*x-5x+1=0求x*x*x-4x*x-4x-1提取公因式:已知x*x-5x+1=0求x*x*x-4x*x-4x-1提取公因式:已知x*x-5x+1=0求x*x*x-4x*x-4x

X+X+X+(X-1)+(X-2)+(X-3)+(X-4)=10(X-3)+(X-4)X+X+X+(X-1)+(X-2)+(X-3)+(X-4)=10(X-3)+(X-4)X+X+X+(X-1)+(X

x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7x=?x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7x=?x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7x

x-4/x-5-x-5/x-6=x-7/x-8-x-8/x-9求x=?x-4/x-5-x-5/x-6=x-7/x-8-x-8/x-9求x=?x-4/x-5-x-5/x-6=x-7/x-8-x-8/x-

解方程(x/x(x+2))+(x/(x+2)(x+4))+.+x/(x+8)(x+10)=1解方程(x/x(x+2))+(x/(x+2)(x+4))+.+x/(x+8)(x+10)=1解方程(x/x(

x^4+x^3+x^2+x+1=0,x^2006+x^2005+x^2004+x^2003+x^2002x^4+x^3+x^2+x+1=0,x^2006+x^2005+x^2004+x^2003+x^