因式分解X5-X4+2X3-2X2+2X-4
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因式分解X5-X4+2X3-2X2+2X-4
因式分解X5-X4+2X3-2X2+2X-4
因式分解X5-X4+2X3-2X2+2X-4
X5-X4+2X3-2X2+2X-4
=x^3(x^2-x+2)-2(x^2-x+2)
=(x^3-2)(x^2-x+2)
因式分解X5-X4+2X3-2X2+2X-4
因式分解:x5-3x4+2x3-x2+3x-2
因式分解:x5-2x4-3x3+x2-2x-3
因式分解:x5+2x4-3x3-6x2+2x+4
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因式分解:x4+x3+2x2 +x+1
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若X1,X2,X3,X4,X5 满足方程组:2X1+X2+X3+X4+X5=6,①X1+2X2+X3+X4+X5=12 ②X1+X2+2X3+X4+X5=24 ③X1+X2+X3+2X4+X5=48 ④X1+X2+X3+X4+2X5=96 ⑤⑴求X1+X2+X3+X4+X5的值;⑵求3X3+2X4-X5有必要说明一下,凡是跟在X后面的数字都是小
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