Use Summation Notation
- $$\sum _ { k = 2 } ^ { 4 } k ( k - 4 )$$

Use Summation Notation
- $$\sum _ { k = 2 } ^ { 4 } k ( k - 4 )$$

A) $- 7$
B) $- 10$
C) $- 4$
D) 6