(2x+5)(x+1)-(x-3)(x+1)(计算)
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)
计算:/3-x/+/x-1/(x>5).
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 2(x²-x+1)-(-2x+3x²)+(1-x)
计算,3x(x平方-2x-1)-2x平方(x-3)
计算 ∫(x^4-2x^3+x^2+1)/x(x-1)² dx
计算3x²-[5x-(1/2x-3)+2x²]
计算:3x²-[5x-(1/2 x-3)+2x²]
计算:3x²-[5x-(1/2x-3)+2x²]