下列各式:(x-1)(x+1)=x²-1;(x-1)(x²+x+1)=x三次方-1.根据规律可得(x-1)(xn次方+x次方-1)+.x+1)【n为正整数】
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![下列各式:(x-1)(x+1)=x²-1;(x-1)(x²+x+1)=x三次方-1.根据规律可得(x-1)(xn次方+x次方-1)+.x+1)【n为正整数】](/uploads/image/z/10128795-51-5.jpg?t=%E4%B8%8B%E5%88%97%E5%90%84%E5%BC%8F%EF%BC%9A%EF%BC%88x-1%EF%BC%89%EF%BC%88x%2B1%EF%BC%89%3Dx%26%23178%3B-1%EF%BC%9B%EF%BC%88x-1%EF%BC%89%EF%BC%88x%26%23178%3B%2Bx%2B1%EF%BC%89%3Dx%E4%B8%89%E6%AC%A1%E6%96%B9-1.%E6%A0%B9%E6%8D%AE%E8%A7%84%E5%BE%8B%E5%8F%AF%E5%BE%97%EF%BC%88x-1%EF%BC%89%EF%BC%88xn%E6%AC%A1%E6%96%B9%2Bx%E6%AC%A1%E6%96%B9-1%29%2B.x%2B1%EF%BC%89%E3%80%90n%E4%B8%BA%E6%AD%A3%E6%95%B4%E6%95%B0%E3%80%91)
下列各式:(x-1)(x+1)=x²-1;(x-1)(x²+x+1)=x三次方-1.根据规律可得(x-1)(xn次方+x次方-1)+.x+1)【n为正整数】
下列各式:(x-1)(x+1)=x²-1;(x-1)(x²+x+1)=x三次方-1.根据规律可得(x-1)(xn次方+x
次方-1)+.x+1)【n为正整数】
下列各式:(x-1)(x+1)=x²-1;(x-1)(x²+x+1)=x三次方-1.根据规律可得(x-1)(xn次方+x次方-1)+.x+1)【n为正整数】
(x-1)(x+1)=x²-1;
(x-1)(x²+x+1)=x三次方-1.
根据规律可得
(x-1)(xn次方+x 次方-1)+.x+1)【n为正整数】
=x^(n+1)-1