Undetermined Coefficients (Part 2)
Algebra
Level
4
\[ 1\cdot 2\cdot 3+2\cdot 3\cdot 4+3\cdot 4\cdot 5+\dots +98\cdot 99\cdot 100 = \, ? \]
You may want to read the wiki Method of Undetermined Coefficients.
by
Arulx Z