胡歌自爆爱林心如:初二的数学题,在这先谢谢大哥大姐,速解
来源:百度文库 编辑:高校问答 时间:2024/05/11 18:09:13
x的n+2次+x的2n+2次-6x的平方=???(n为自然数)
要详细的解题过程
要详细的解题过程
x^(n+2)+x^(2n+2)-6x^2
=x^2(x^n+x^2n-6)
=x^2[(x^n)^2+x^n-6]
=x^2(x^n+3)(x^n-2)
1
x^(n+2)+x^(2n+2)-6x^2
=x^2(x^n+x^2n-6)
=x^2[(x^n)^2+x^n-6]
=x^2(x^n+3)(x^n-2)
1