阅读理解:(1)计算后填空:(x+1)(x+2)=______; (x+3)(x-1)=______;(2)归
计算:4x(x-1)2-x(2x+5)(2x-5)=______.
计算:(x+5)(x-1)=______.
阅读理解并填空:(1)为了求代数式x2+2x+3的值,我们必须知道x的值.若x=1,则这个代数式的值为______;若x
分解因式:x(x-1)(x+1)(x+2)-24=______.
计算:(-4x-3y)2=______.
分解因式:(x+1)(x+2)(x+3)(x+6)+x2=______.
函数y=(1-2x-3x²)/x²,x∈[¼,2]的值域为______.
若|x-y+2|与(x+y-1)2互为相反数,则x=______,y=______.
方程x(x-1)=2(x-1)的解是______.
用适当的符号填空(1)a______{a,b,c};(2)0______{x|x2=0};(3)∅______{x∈R|
若52x+1=125,则(x-2)2012+x=______.
已知f(x)=(x-1)(x-2)(x-3)(x-4)(x-5),则f′(1)=______.