Odpowiedź :
[tex]\boxed{4a- 3b} \ \underrightarrow{- 2a -3b \ } \ \boxed{2a -6b} \ \underrightarrow{+3a -2b \ } \ \boxed{5a -8b}[/tex]
[tex]\boxed{4a- 3b} \ \underrightarrow{- 2a -3b \ } \ \boxed{2a -6b} \ \underrightarrow{+3a -2b \ } \ \boxed{5a -8b}[/tex]