complete the patterns: find the 50 th term and n th term
a)3,6,11,---,27,---,51,---,..
b)0,3,8,---,---,35,---,63,..
c)1,8,27,---,---,216,---,512,..
a) looks like 2 more than the sequence of squares,
1+2 , 4+2, 9+2, 16+2, 25+2 , ... , 49+2 ....
b) hint: compare the squares to the sequence of squares
c) think cubes