4(2x-1)-3(5x+2)=3(2-x)怎样算?
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4(2x-1)-3(5x+2)=3(2-x)怎样算?
![4(2x-1)-3(5x+2)=3(2-x)怎样算?](/uploads/image/z/18977190-6-0.jpg?t=4%282x-1%29-3%285x%2B2%29%3D3%282-x%29%E6%80%8E%E6%A0%B7%E7%AE%97%3F)
4(2x-1)-3(5x+2)=3(x-2)
8x-4-15x-6=3x-6
8x-15x-10=3x-6
-7x-10=3x-6
4x=-16
x=-4
8x-4-15x-6=3x-6
8x-15x-10=3x-6
-7x-10=3x-6
4x=-16
x=-4
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
小数奥数网xx(x +1)x(x+ 2)x(x +3)=360怎样算?
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
|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?
已知1+x+x^2+x^3=0,求x+x^2+x^3+x^4+x^5+x^6+x^7+x^8的值
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),
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
1x+2x+3x+4x+5x+6x+7x…+99x=100
(X+2)/(X+1)-(X+4)/(X+3)=(X+6)/(X+5)-(X+8)/(X+7)
解方程:2x+4x+6x...+100x=1-(x+3x+5x+...+99x)