(2x+19)/(5x²-5)-17/(x²-1)-3/(1-x)=0计算
(2x+19)/(5x²-5)-17/(x²-1)-3/(1-x)=0计算
2x+19/(5x²-5)-17/(x²-1)-3/(1-x)=0计算
计算5x(2x² -3x+1)
x(x²-1)+2x²(x+1)-3x(2x-5)计算
计算(1).(5x-2)(x-3)-(3x-1)(x-4)= (2).(x+3)(x²+9)(x-3)=
计算 (5x-2)(x-3)-(3x-1)(x-4)= (x+3)(x²+9)(x-3)=
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
计算3x²-[5x-(1/2x-3)+2x²]
计算:3x²-[5x-(1/2 x-3)+2x²]
计算(-x³+2x²-5)(2x²-3x+1)
计算:[(-5+x)(-x-5)]² (x+3)²-(x+2)(x-1) (3x-a)(3x+a)(
(x³-1)÷(x-1)=?(9x³-6x²-5x+2)÷(3x-1)=?计算