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x^3+(2x^3+x-3)^3=3

find x

 Dec 2, 2023
 #1
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Let s=2x3+x−3, then x3+s3=3, or 3s3⋅x3−3s=0. Factoring out x3, we have x3⋅(3s2−1)=0.

 

Since s=2x3+x−3=0, we have x3=0, or x=0​.

 Dec 2, 2023

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