Determine the value of the summation: ‚Äö√Ñ√∂‚àö‚Ä†‚àö¬¥‚Äö√Ñ√∂‚àö‚Ä†‚àö¬™n= -‚Äö√Ñ√∂‚àö‚Ä†‚àö¬™ ‚âà√≠¬¨‚Ä¢(n+3)(n2+n).$

Determine the value of the summation: ‚Äö√Ñ√∂‚àö‚Ä�

1.	Determine the value of the summation: ‚Äö√Ñ√∂‚àö‚Ä†‚àö¬¥^{‚Äö√Ñ√∂‚àö‚Ä†‚àö¬™}_{n= -‚Äö√Ñ√∂‚àö‚Ä†‚àö¬™} ‚âà√≠¬¨‚Ä¢(n+3)(n²+n).$
A.	3
B.	6
C.	9
D.	12
Answer» C. 9