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X的十五次方+X的十四次方+X的十三次方+……+X的二次方+X+1
=x^14(x+1)+x^12(x+1)+...x^2(x+1)+(x+1)
=(x^14+x^12+...+x^2+1)(x+1)
=[x^12(x^2+1)+...+(x^2+1)](x+1)
=(x^12+x^8+x^4+1)(x^2+1)(x+1)
=[x^8(x^4+1)+x^4+1](x^2+1)(x+1)
=(x^8+1)(x^4+1)(x^2+1)(x+1)
如果本题有什么不明白可以追问,如果满意记得采纳
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祝学习进步!
满意答案比较雷人,误人子弟!其实比较简单的分解为:
设A=代数式,那么(x-1)A=x^16-1
所以得:A=(x^16-1)/(x-1)
=[(x-1)(x+1)(x�0�5+1)(x^4+1)(x^8+1)]/(x-1)
=(x+1)(x�0�5+1)(x^4+1)(x^8+1)
分解因式:X的十五次方+X的十四次方+X的十三次方+……+X的二次方+X+1
=(x^16-1)/(x-1)
=(x^8-1)(x^8+1)/(x-1)
=(x+1)(x^2+1)(x^4+1)(x^8+1)
x^15+x^14+x^13+……+x^2+x+1=x^14(x+1)+x^12(x+1)+……+x^2(x+1)+(x+1)=(x+1)(x^14+x^12+……+x^2+1)=(x+1)[x^12(x^2+1)+x^8(x^2+1)+……+(x^2+1)]=(x+1)(x^2+1)(x^12+x^8+x^4+1)=(x+1)(x^2+1)[x^8(x^4+1)+(x^4+1)]=(x+1)(x^2+1)(x^4+1)(x^8+1)
解:(x^15+x^14+x^13+……+x^2+x+1)*(x-1)
=x^16-x^15+x^15-x^14+x^14-x^13+……+x^3-x^2+x^2-x+x-1
=x^16-1
∴x^15+x^14+x^13+……+x^2+x+1
=(x^16-1)/(x-1)
=(x^8+1)(x^8-1)/(x-1)
=(x^8+1)(x^4+1)(x^4-1)/(x-1)
=(x^8+1)(x^4+1)(x^2+1)(x^2-1)/(x-1)
=(x^8+1)(x^4+1)(x^2+1)(x+1)(x-1)/(x-1)
=(x^8+1)(x^4+1)(x^2+1)(x+1)