计算(3x-2)(1-2x)(-5x)=_____
计算(3x-2)(1-2x)(-5x)=_____
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)
(1)(x+2) (x+3)=_____?(2)(x+2)(x-3)=_____?
已知5x²-3x-5=0,则5x²-2x-(1/5x²-2x-5)=_____
(x+2分之x+3)-(x+1分之x+2)=(x+4分之x+5)-(x+3分之x+4) 计算x+3分之2x+9-x-3分
计算:-x+(2x-2)-(3x+5)
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)=
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)