Ответы и объяснения

  • Участник Знаний
2014-03-25T20:13:02+04:00
64A - A^3 = A* ( 64 - A^2) = A * ( 8 - A) * ( 8 + A )
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X^3 - 10X^2 + 25X = X * ( X^2 - 10X + 25 )
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X^2 - 10X + 25 
D = 100 - 4*25 = 0 
X = 10 : 2 = 5 
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X^3 - 10X^2 + 25X = X * ( X - 5) * ( X - 5 )
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