\(18\times\left(82-147\right)-82\times\left(18+147\right)\)
\(=18\times82-18\times147-82\times18-82\times147\)
\(=\left(18\times82-82\times18\right)-147\times\left(18+82\right)\)
\(=-147\times100\)
\(=-14700\)
\(18\times\left(82-147\right)-82\times\left(18+147\right)\))
=\(18\times82-147\times18-18\times82-147\times82\)
=\(-147\times\left(82+18\right)\)
=\(-147\times100\)
=\(-14700\)