Answers

2016-06-28T20:56:53+08:00
The cube of x+5 is  x^{3} +15 x^{2} +75x+125.
0
you've get it from google right?
No...
2016-06-28T20:57:34+08:00
(x+5)³
=x³ + 3(5)²(x) + 3(5)(x)² + 5³
=x³ + 75x + 15x² +125
0
i solved it
now this (X+3) to the power of 3?
(x+3)
wait
x^3 + 27x + 9x^2 + 27