113k views
3 votes
What is the factored form of x^3 - 729

User Apascual
by
3.5k points

2 Answers

5 votes

Answer:
(x-9) (x^(2) +9x + 81)

Explanation:

User Yixuan
by
4.6k points
7 votes

Answer:

(x - 9)(x^2 + 18x + 81).

Explanation:

Use the difference of cubes factorization, which claims that a^3 - b^3 = (a - b)(a^2 + ab + b^2)

x^3 - 729 = (x - 9)(x^2 + 18x + 81)

User Venkat Kotra
by
4.3k points