(2X+3)(2X-3)-4X(X-1)+(X-2)²怎么运算,
(2X+3)(2X-3)-4X(X-1)+(X-2)²怎么运算,
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
(x+1-1/1-x)÷(x-x²/x-1) (x-4/x-x-6+ x+2/x-3)÷x+1/x-3
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
(X-3)/(X^2-4)*(X^2-4X+4)/(x^2-x-6)-1/(x+2)怎么算?
(x+1)/(x²+3x+2)+(x²-2x)/(x²-4)
x-1)(X-2)(x-3)...(x-50)+x(x-2)(X-3)...(X-50)+...+x(x-1)(x-2)
3x⁷*x⁴+2x*x²*x⁴-4x⁵*(-x)²
x(2-1/x)+x/(x^2-2x)÷(3-x)/(x^2-4)
x^4+x^3+x^2+x+1=0,x^2006+x^2005+x^2004+x^2003+x^2002
合并同类项!(2x²+x)-[4x²-(3x²-x)]怎么做