A) ( 115r² + 12y + 3 ) + ( 22r – 15y + 4f )
115r² + 12y + 3 + 22r – 15y + 4f
115r² + 12y – 15y + 2 + 22r + 4f
115r² – 3y + 2 + 22r + 4f
B) ( 3pq – 6 ) ( 2pq + 6 )
6pq² + 18pq – 12pq – 36
6pq² + 6pq – 36
C) x² ( x – 1 )
x³ – x²
A) ( 115r² + 12y + 3 ) + ( 22r – 15y + 4f )
115r² + 12y + 3 + 22r – 15y + 4f
115r² + 12y – 15y + 2 + 22r + 4f
115r² – 3y + 2 + 22r + 4f
B) ( 3pq – 6 ) ( 2pq + 6 )
6pq² + 18pq – 12pq – 36
6pq² + 6pq – 36
C) x² ( x – 1 )
x³ – x²