(6b+8)³-125
(6b)³+3*(6b)²*8+3*6b*8²+8³-125
216b³+3*36b²*8+3*6b*64+512-125
216b³+864b²+1152b+512-125
216b³+864b²+1152b+387
1000+(3q+12)³
1000+(3q)³+3*(3q)²*12+3*3q*12²+12³
1000+27q³+3*9q²*12+3*3q*144+1728
1000+27q³+324q²+1296q+1728
2728+27q³+324q²+1296q
27q³+324q²+1296q+2728