(x-3)(x+3)(x四次+9x²+81)-2*根号2-1=

发布时间:2021-02-23 20:29:48

(x-3)(x+3)(x四次+9x²+81)-2*根号2-1=

网友回答

x-3)(x+3)(x^4+9x²+81)
=(x^2-9)(x^4+9x²+81)
=(x²-9)(x²-9)²
=(x²-9)^3
=x^6-729
-2*根号2-1=
1-2√2+(√2)²-(√2)²-1-1=(√2-1)²-3=(√2-1+√3)(√2-1-√3)======以下答案可供参考======
供参考答案1:
(x-3)(x+3)(x四次+9x²+81)
=(x^2-9)(x四次+9x²+81)
=x^6-729
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