4x+9=5x-6
解方程:x-19分之5x-96+x-9分之x-8=x-6分之4x-19+x-8分之2x-21
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
4x²-4x+1=x²+6x+9
数学题(x-4)/(x-3)+(x-6)/(x-5)=(x-8)/(x-7)+(x-10)/(x-9)解方程,
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
x-4/x-5 - x-5/x-6=x-7/x-8 - x-8/x-9求x=?
解方程6^x+4^x=9^x
解下列方程(2)4x²+12x+9=81 (4)2x²+3x=3 (6)x(2x-5)=4x-10
解一元二次不等式2x²-x+5≥0 -4+x-x²<0 x²-6x+9
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),
(4x+2)/x+(4x-22)/(x-5)=(x-6)/(x-4)+(7x+9)/(x+1)