因式分解以下题目x2(2为次数,下同)+x+1(x+y)4+x4+y46x4+7x3y+5x2y2-xy3-2y4x3-7x-6x3-48x-7(m2-1)(n2-1)+4mn

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因式分解以下题目x2(2为次数,下同)+x+1(x+y)4+x4+y46x4+7x3y+5x2y2-xy3-2y4x3-7x-6x3-48x-7(m2-1)(n2-1)+4mn
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因式分解以下题目x2(2为次数,下同)+x+1(x+y)4+x4+y46x4+7x3y+5x2y2-xy3-2y4x3-7x-6x3-48x-7(m2-1)(n2-1)+4mn
因式分解以下题目
x2(2为次数,下同)+x+1
(x+y)4+x4+y4
6x4+7x3y+5x2y2-xy3-2y4
x3-7x-6
x3-48x-7
(m2-1)(n2-1)+4mn

因式分解以下题目x2(2为次数,下同)+x+1(x+y)4+x4+y46x4+7x3y+5x2y2-xy3-2y4x3-7x-6x3-48x-7(m2-1)(n2-1)+4mn
4、x³-7x-6=x³-3x²+3x²-7x-6=x²(x-3)+(x-3)(3x+2)=(x-3)(x+2)(x+1)
5、x³-48x-7=x³-7x²+7x²-48x-7=x²(x-7)+(x-7)(7x+1)=(x-7)(x²+7x+1)

(x+y)4+x4+y4
=4x+4y+4x+4y
=8x+8y
=8(x+y)

x3-7x-6
=-4x-6
=-2(x+3)

呵呵,不好意思,我只会这两个,出来好几年了,好多都忘了,不知道对不对