( X - 2 )*( X^2 + 2X + 1 ) = 4 * ( X + 1 )
( X - 2 ) * ( X + 1 ) * ( X + 1 ) = 4 * ( X + 1 )
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X + 1 ≠ 0 ; X ≠ - 1
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( X - 2 ) * ( X + 1 ) = 4
X^2 + X - 2X - 2 - 4 = 0
X^2 - X - 6 = 0
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D = 1 + 24 = 25 ; √ D = 5
X1 = ( 1 + 5 ) : 2 = 3
X2 = ( 1 - 5 ) : 2 = - 2
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Ответ 3 и ( - 2 )