Respuesta :
Answer: A. None of the above
Step-by-step explanation:
The given expression is x³ + 343.
Now, we can use the sum of cubes formula which states that a³ + b³ can be factored as (a + b)(a² - ab + b²). In this case, we have x³ + 7³, so it can be factored as:
x³ + 343 = (x + 7)(x² - 7x + 49)
Therefore, the factors of x³ + 343 are (x + 7)(x² - 7x + 49).
Answer:
A
Step-by-step explanation:
x³ + 343 ← is a sum of cubes and factors in general as
a³ + b³ = (a + b)(a² - ab + b² )
x³ + 343
= x³ + 7³ → with a = x and b = 7
= ( x + 7)(x² - 7x + 7² )
= (x + 7)(x² - 7x + 49)
