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@рпаропоппрпропрп
July 2022
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Решите уравнение:
а) 5x^4 + 4x^3 - 20x^2 - 16x = 0;
б) (3x + 7)^2 * (3x - 7) - 9(3x -7) = 0
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ArtiVishnya
А) х^3×(5х+4)-4х×(5х+4)=0
х×(5х+4)×(х^2-4)=0
х=0
5х+4=0
х^2-4=0
х1=0
х2=-0,8
х3=-2
х4=2
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Answers & Comments
х×(5х+4)×(х^2-4)=0
х=0
5х+4=0
х^2-4=0
х1=0
х2=-0,8
х3=-2
х4=2