SOLUTION: How do you solve this problem, in details please? (a-2) (a^2 + 2a +4)

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Question 760683: How do you solve this problem, in details please? (a-2) (a^2 + 2a +4)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

Use the difference of cubes factoring rule (in reverse though) to get

(a-2)(a^2 + 2a +4)

(a-2)(a^2 + 2a + 2^2)

a^3 - 2^3

a^3 - 8