Question

how do I solve this? please help​

Answer 1

Answer:

a4-a=a3

because if a*a*a*a=a4 we subtract one a it will become

a3

Answer 2

Answer:

Since both terms are perfect cubes, factor using the difference of cubes formula,

 a³−b³=(a−b)(a²+ab+b²)

 where a=a and b=1

a(a−1)(a²+a+1)