Respuesta :

kritika3375

Answer:

C. 3x² + 12x - 15

Step-by-step explanation:

length (L) = x - 1

width (w) = x + 5

height (h) = 3

Volume (V)

= L * W * h

= ( x - 1) ( x + 5) 3

= 3 ( x² + 5x - x - 5)

= 3 ( x² + 4x - 5)

= 3x² + 12x - 15

Hope it will help :)