计算:4x(x-1)2-x(2x+5)(2x-5)=______.
计算:4x(x-1)2-x(2x+5)(2x-5)=______.
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
计算:(x+5)(x-1)=______.
计算:1/(x^2-7x+10)+1/(x^2-x-2)+1/(x^2+5x+4)+1/(x^2+11x+28)=( )
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
已知f(x)=(x-1)(x-2)(x-3)(x-4)(x-5),则f′(1)=______.
(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
已知x满足不等式3(5x+2)+5<4x-6(x+1),化简|x+1|-|1-3x|=______.
计算5x(2x² -3x+1)
计算:5x²-[3x-(4x-3x)-2x²]
计算(1).(5x-2)(x-3)-(3x-1)(x-4)= (2).(x+3)(x²+9)(x-3)=