计算:(3x+2)(3x-2)-5x(x-1)-(2x-1)2.
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5x(2x² -3x+1)
x^2-1/x^2+4x+4÷(x+1)×x^2+3x+2/x-1计算
计算3x(x^2-x-1)-2x^2(1-x)
计算,3x(x平方-2x-1)-2x平方(x-3)
计算 2(x²-x+1)-(-2x+3x²)+(1-x)
计算 ∫(x^4-2x^3+x^2+1)/x(x-1)² dx
计算:(3x+2)(3x-2)-5x(x-1)-(2x-1)2.
(x+2/x+1)-(x+4/x+3)-(x+3/x+2)+(x+5/x+4)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
【计算(过程)】-x^2*(-x)^3+3x^3*(-x^2)-4(-x)*(-x)^4