matthewdvarnad10 matthewdvarnad10

10-11-2021
Mathematics

contestada

The polynomial x3 + 8 is equal to

(x + 2)(x2 – 2x + 4).
(x – 2)(x2 + 2x + 4).
(x + 2)(x2 – 2x + 8).
(x – 2)(x2 + 2x + 8).

Respuesta :

syahbanazacki syahbanazacki

11-11-2021

Step-by-step explanation:

The polynomial x³ + 8 is equal to (x + 2)(x² - 2x + 4)

= (x + 2)(x² - 2x + 4)

= x³ - 2x² + 4x + 2x² - 4x + 8

= x³ + (-2 + 2)x² + (4 - 4)x + 8

= x³ + 8

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