(x-2)^2-5(x^3-8)-6(x^2+2x+4)^2=0 найдите утроенное творение корней уравнения

( x - 2 ) - 5 ( x - 8 )- 6 ( x + 2x + 4 ) = 0 ;

x - 4x + 4 - 5x + 40 - 6 ( x + 4x + 16 + 4x + 8x + 16x )= 0 ;

x - 4x + 4 - 5x + 40 - 6 ( x + 12x + 16 + 4x + 16x )= 0 ;

x - 4x + 4 - 5x + 40 - 6x - 72x - 96 - 24x - 96x = 0 ;

- 71x - 100x - 52 - 29x - 6x = 0 ;

- 6x - 29x - 71x - 100x - 52 = 0 ;

- 6x - 6x - 23x - 48x - 48x - 52x - 52 = 0 ;

- 6x ( x + 1 )- 23x ( x + 1 )- 48x ( x + 1 )= 0 ;

-( x + 1 )( 6x + 23x + 48x + 52 )= 0 ;

-( x + 1 )( 6x + 12x + 11x + 22x + 26x + 52 )= 0 ;

-( x + 1 )( 6x ( x + 2 )+ 11x ( x + 2 ) + 26( x + 2 ))= 0 ;

-( x + 1 )( x + 2 )( 6x + 11x + 26 )= 0 ;

-( x + 1 )= 0 ;

x + 2 = 0 ;

6x + 11x + 26 = 0 ;

x = - 1 ;

x = - 2 .