Question

Find the product.
(a^3 + 8)(a^3 - 8)

Answer 1

Remember, (b+c)(b-c) = b² - c²

Answer 2

Or you can use FOIL or box method.

Answer 3

Okay! is it a^6 - 512?

Answer 4

a^6 - 64***** i mean

Answer 5

8² = 512??? Try again.

Answer 6

Yep, \(\boxed{a^6 - 64}\)

Answer 7

\[\large (a^3+8)(a^3-8)\]\[\large a^3(a^3-8)+8(a^3-8)\]\[\large (a^3)(a^3)-(a^3)(8)+(8)(a^3)-(8)(8)\] now just expand this and you'll have your answer

Answer 8

\[\large a^{(3+3)}-8a^3+8a^3-64\]hope that helps too... :\