Question

Factor: 216+8d^3

d^3 is d to the third power

Answer 1

As a³ + b³ = (a + b)(a² – ab + b²) 
 
6 ^3  + (2 .d ) ^3 

=  ( 6 + 2d ) ( 36 + 4d^2 - 12d)
= 2 (3 +d) ( 36 +  4d^2 - 12d)

hope it helped