因式分解:(1) 9x^(n+1)-36x^n+36x^(n-1) (2) 2(2x-1)^2-3/4(2x-1)+2/9

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/16 16:34:39
因式分解:(1)9x^(n+1)-36x^n+36x^(n-1)(2)2(2x-1)^2-3/4(2x-1)+2/9因式分解:(1)9x^(n+1)-36x^n+36x^(n-1)(2)2(2x-1)

因式分解:(1) 9x^(n+1)-36x^n+36x^(n-1) (2) 2(2x-1)^2-3/4(2x-1)+2/9
因式分解:(1) 9x^(n+1)-36x^n+36x^(n-1) (2) 2(2x-1)^2-3/4(2x-1)+2/9

因式分解:(1) 9x^(n+1)-36x^n+36x^(n-1) (2) 2(2x-1)^2-3/4(2x-1)+2/9
(1) 9x^(n+1)-36x^n+36x^(n-1)
=9x^(n-1)(x²-4x+4)
=9x^(n-1)(x-2)²
(2) 应该是2(2x-1)^2-4/3(2x-1)+2/9
=2[(2x-1)²-2/3(2x-1)+1/9]
=2(2x-1-1/3)²
=2(2x-4/3)²