计算:2(x+1)+x(x+2)-(x-1)(x+5)
x(x²-1)+2x²(x+1)-3x(2x-5)计算
计算x^2-5x+6/x^2-1/x^2+x/x-3
计算:(x-1)(x^2-4X+3)-x(x^2-5X+2)有过程
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
分式混合计算(x+1/x^2-x - x/x^2-2x+1)*x
计算 x(x+3)-(x-1)(x-2)
如何计算 (x+1)(x+2)(x+3)(x+4)
计算:(x+1)(x-2)(x-3)(x-6)
计算(X-1)(X-2)(X-3)(X-4)
x/x-3-5x/x^2-x-6计算
计算(-2x+1)(-3x+5)
计算:[(-5+x)(-x-5)]² (x+3)²-(x+2)(x-1) (3x-a)(3x+a)(