transgalactic
Junior Member
- Joined
- Nov 20, 2008
- Messages
- 58
(1+x)^k * (1+x) > 1 + (k+1)*x + (k+1)*x^2 + (k-1)x^2+ kx^3
(1+x)^k * (1+x) > 1 + (k+1)*x + (k+1)*x^2
how did the (k-1)x^2+ kx^3 dissapeared?
(1+x)^k * (1+x) > 1 + (k+1)*x + (k+1)*x^2
how did the (k-1)x^2+ kx^3 dissapeared?