5x+15.8+x=45.8

用递归法求y=x-(x*x*x/3!)+(x*x*x*x*x/5!)-(x*x*x*x*x*x*x/7!)+.用递归法求y=x-(x*x*x/3!)+(x*x*x*x*x/5!)-(x*x*x*x*x

5x+15.8+x=45.8解方程5x+15.8+x=45.8解方程5x+15.8+x=45.8解方程6x=30x=5

x-三分之一x-四分之一x(x-三分之一x)=5x-三分之一x-四分之一x(x-三分之一x)=5x-三分之一x-四分之一x(x-三分之一x)=5x-三分之一x-四分之一x(x-三分之一x)=52/3x

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

解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+

(x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2(x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2(x+12)(x-2)+(x+7)(x+

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

x.x-5x+1=0,那么x.x+1/x.xx.x-5x+1=0,那么x.x+1/x.xx.x-5x+1=0,那么x.x+1/x.xx^2+1=5xx^4/x^2+1/x^2(x^4+1)/x^2{(

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)-2x(x+1)-3x(x-5)其中x=负½x(x-2)-2x(x+1)-3x(x-5)其中x=负½x(x-2)-2x(x+1)-3x(x-5)其中x=负½x

(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)

（X+X)+(X-X)+(X*X)+(X/X)=100（X+X)+(X-X)+(X*X)+(X/X)=100（X+X)+(X-X)+(X*X)+(X/X)=100（X+X)+(X-X)+(X*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-9求x=?x-4/x-5-x-5/x-6=x-7/x-8-x-8/x-

f(x,-x)=x^2+2x,fx(x,-x)=5x+1,则fy(x,-x)=f(x,-x)=x^2+2x,fx(x,-x)=5x+1,则fy(x,-x)=f(x,-x)=x^2+2x,fx(x,-x

(x+7/x+6)+(x+9/x+8)=9x=(x+10/x+9)+(x+6/x+5)(x+7/x+6)+(x+9/x+8)=9x=(x+10/x+9)+(x+6/x+5)(x+7/x+6)+(x+9

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

已知3x*x-x=1,求6x*x*x+7x*x-5x+2000已知3x*x-x=1,求6x*x*x+7x*x-5x+2000已知3x*x-x=1,求6x*x*x+7x*x-5x+20003x*x=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-1提取公因式:已知x*x-5x+1=0求x*x*x-4x*x-4x

(X-5)(X-6)=X-5(X-5)(X-6)=X-5(X-5)(X-6)=X-5(X-5)(X-6)=X-5则(x-5)(x-6)-(x-5)=0则(x-5)(x-6-1)=0则(x-5)(x-7