briannaedwards2023 briannaedwards2023

10-06-2021
Mathematics

contestada

Simplify the following expression:
-5[(x3 + 1)(x + 4)]
A. 4 + 4x3 + x + 4
B. x4 + 3 + 4x
C. -5x4 + 20X3 - 5
D. -5x4 - 20X3 - 5x- 20

Respuesta :

rishabhh rishabhh

10-06-2021

-5[(x3 +1)(x + 4)]

=> -5[ x3 (x+4) + 1 (x+4) ]

=> -5 [ x4 + 4x3 + x + 4x ]

=> -5x4 -20x3 -5x -20x

option D is the correct one

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