10(3x-1)+x=10x+3x-1+45求解

有几道题求解,|x²-3x|＞4,|x/1+x|＞x/1+x |X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10| y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1 设函数f(x)=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10), 6x²+2x=(1+3x)(2+x)一元二次方程求解,急 6x²+2x=(1+3x)(2+x)一元二次方程求解 求解方程1-x-2/3=1-x/5 |x+1|=|2x-3| 绝对值方程求解, 求解方程(x-1)/(x²-5x+6)+(x-2)/(x²-4x+3)=(x-3)/(x² 3x(x^2-2x+1)-2x^2(x-1)求解! 1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550 1x()+2x()+3x()+4x()+5x()+6x()+7x()+8x()加9x()+10x()=1980