(6x^2-12^4)/3x^2
约分 (X的平方+4x+3)(2x-x)^/(X^+X)(X^+X-6),
已知 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-8X+15)的值
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
2x+3x+4x+5x+x+6x+7x=100
(x+1-1/1-x)÷(x-x²/x-1) (x-4/x-x-6+ x+2/x-3)÷x+1/x-3
x+2x-3x-4x+5x+6x-7x.-196x+197x+198x-199x-200x 等于多少
先化简,再求值:[(4x^2+12x)/(x^2+x-6)/[(x-2)/(x+2)-(x+2)/(x-2)]其中x-3
x^3×x^5×x+(x^3)^12+4(x^6)^2=?
x^3*x^5*x+(x^3)^12+4(x^6)^2
5x+9x=6x*2+12 x+9-x/3=4