Question

(a - b)(a 2 + ab + b 2)

Answer 1

a³ − b³

Step-by-step explanation:

(a − b)(a² + ab + b²)

= (a + −b)(a² + ab + b²)

= (a)(a²) + (a)(ab) + (a)(b²) + (−b)(a²) + (−b)(ab) + (−b)(b²)

= a³ + a²b + ab² − a²b − ab² − b³

= a³ − b³

Answer 2

a^3 - b^3

Step-by-step explanation:

a^3 + a^2b + ab^2 - a^2b - ab^2 - b^3

a^3 - b^3