2(x-1)-(5x+3)=3(2x+1)+(x-4)【要过程】
5x+(-2x)-[3(2x-1)-4(2x+1)]化简(要过程)
计算:(x-1)(x^2-4X+3)-x(x^2-5X+2)有过程
(X-X*20%-18-(X-X*20%-18)*10%=X*1/2-3(过程)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
【计算(过程)】-x^2*(-x)^3+3x^3*(-x^2)-4(-x)*(-x)^4
(x+2/x+1)-(x+4/x+3)-(x+3/x+2)+(x+5/x+4)
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
高数题求解答过程f(x)=x(x-1)(x+2)(x-3)(x+4).(x+100)求f'(1)要过程,答案我有是-10
lim(x趋于∞)[(x+1)/(x+2)]^3x=( )求计算过程
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
6/(x+1)=(x+5)/[x(x+1)] (3-x)/(x-4)+1/(4-x)=1 2/(1+x)-3/(1-x)