x^4-x^2-2x-1因式分解

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x^4-x^2-2x-1因式分解x^4-x^2-2x-1因式分解x^4-x^2-2x-1因式分解x^4-x^2-2x-1=x^4-(x^2+2x+1)=x^4-(x+1)^2=(x^2+x+1)(x^

x^4-x^2-2x-1因式分解
x^4-x^2-2x-1因式分解

x^4-x^2-2x-1因式分解
x^4-x^2-2x-1
=x^4-(x^2+2x+1)
=x^4-(x+1)^2
=(x^2+x+1)(x^2-x-1)

x^4-x^2-2x-1
=x^4-(x+1)^2
=(x^2+x+1)(x^2-x-1)

=x^4-(x-1)²
=(x²-x+1)(x²+x-1)