计算:(1-2)X(2-3)X(3-4)X…X(2007-2008)X(2009-2010)
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
计算 x(x+3)-(x-1)(x-2)
计算1/(x+1)(x+2)+1/(x+2)(x+3)+1/(x+3)(x+4)+……+1/(x+2007)(x+200
【计算(过程)】-x^2*(-x)^3+3x^3*(-x^2)-4(-x)*(-x)^4
x^2-1/x^2+4x+4÷(x+1)×x^2+3x+2/x-1计算
计算 ∫(x^4-2x^3+x^2+1)/x(x-1)² dx
计算:(1-2)X(2-3)X(3-4)X…X(2007-2008)X(2009-2010)
计算x(x+1)/1+(x+1)(x+2)/1+(X+2)(x+3)/1+……+(x+2006)(x+2007)/1 ,
计算:2x-6/4-4x+x^2除以(x+3)乘以x^2+x-6/x+3
计算5x(2x² -3x+1)
计算3x(x^2-x-1)-2x^2(1-x)
计算,3x(x平方-2x-1)-2x平方(x-3)