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 ) ...//

Answer:

Option A is answer

Step-by-step explanation: