Question

Factor.
8a^3-1

Answer 1

looks like a special case polynomial

Answer 2

These two special factoring formulas are two sides of the same coin: the sum and difference of cubes. These are the formulas:

a^3 + b^3 = (a + b)(a^2 – ab + b^2)

a^3 – b^3 = (a – b)(a^2 + ab + b^2)


8a^3-1 = (2a) ³ - (1)³
= ( 2a - ?) (4a² + (?)(?) + ?) @Sky_Pirate