Respuesta :
(x4)(3x2 - 2)(4x2 + 5x)
= (12x3 - 2x4) (4x2 + 5x)
= 48x5 + 60x4 - 8x6 - 10x5
= - 8x6 + 48x5 - 10x5 + 60x4 ...//
= 2x4 ( - 4x2 + 24x - 5x + 30 )
= 2x4 ( - 4x2 + 19x - 30 ) ...//
= (12x3 - 2x4) (4x2 + 5x)
= 48x5 + 60x4 - 8x6 - 10x5
= - 8x6 + 48x5 - 10x5 + 60x4 ...//
= 2x4 ( - 4x2 + 24x - 5x + 30 )
= 2x4 ( - 4x2 + 19x - 30 ) ...//