How do I factor a^3 + 216 ?

2 Answers
May 9, 2018

=> (a + 6) * (a^2 - 6a + 36)

Explanation:

a^3 + 216

It’s in the form x^3 + y^3

(x^3 + y^3) = (x^2 - xy + y^2)

=> a^3 + 6^3

=> (a + 6) * (a^2 - 6a + 6^2)

=> (a + 6) * (a^2 - 6a + 36)

May 9, 2018

a³+216=(a+6)(a²-6a+36)

Explanation:

a³+216
=a³+6³
We know that :
a³+b³=(a+b)(a²-ab+b²)
So:a³+216=(a+6)(a²-6a+36)
\0/ here's our answer !