数学题(-3x^2)^3+2x^2(-5x^2)^2+3x^4·4(-x)^2
数学题2(x^3)^2*x^2-3(x^2)^4+5x^2*x^6
(x+2/x+1)-(x+4/x+3)-(x+3/x+2)+(x+5/x+4)
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
数学题7x+4(x²-2)-2(2x²-x+3)
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)^3(x+1)(x-2)/(x+4)
(x+1)(x+2)(x+3)(x+4)+1
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
数学题[(x^2+x-12)/(2-x-x^2)]^2*[(x^2-3x+2)/(x^2+5x+4)]^2/[(x^2-