`````````````````````````````````````
Объяснение:
405 - 5 х^4=5(81-x^4)=5(9-x²)(9+x²)=5(3-x)(3+x)(9+x²)
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Объяснение:
405 - 5 х^4=5(81-x^4)=5(9-x²)(9+x²)=5(3-x)(3+x)(9+x²)