(X-2)(X+3)+3x+10
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(X-2)(X+3)+3x+10
![(X-2)(X+3)+3x+10](/uploads/image/z/19551913-25-3.jpg?t=%28X-2%29%28X%2B3%29%2B3x%2B10)
(x-2)(x+3)+3x+10
=x^2+x-6+3x+10
=x^2+4x+4
=(x+2)^2
=x^2+x-6+3x+10
=x^2+4x+4
=(x+2)^2
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
x^2+2x/3x^2+x-10化简
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),
x-1)(X-2)(x-3)...(x-50)+x(x-2)(X-3)...(X-50)+...+x(x-1)(x-2)
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
X+7/X+1+X+8/X+2-X+9/X+3-X+10/X+4 的解法
化简X-X^2-X^3-X^4-...X^9+X^10
x^2-3x
(x+3)(x-2)
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