(x²-6x)(x²-6x+18)+81因式分解,_数学解答

(x²-6x)(x²-6x+18)+81因式分解,

人气：170 ℃　时间：2020-01-25 16:23:49

解答

(x²-6x)(x²-6x+18)+81
=(x²-6x+9 -9)(x²-6x+9 +9)+81
=(x²-6x+9)²-9²+81
=(x²-6x+9)²
=((x-3)²)²
=(x-3)^4