Multiplicación y division de polinomios1?
Multiplicación y division de polinomios 1. [tex](5m ^ {2})( - m ^ {2} n + 8)[ / tex][tex] 2. [tex](9x - y)( - 7y - 3xy)[ / tex] 3. [tex](8a ^ {2} b)( - 6a ^ {3} b ^ {2} + 5a ^ {2} b ^ {3} - 3)[ / tex] 4. [tex](2mn ^ {2} )( - 5mn ^ {4} - 8m ^ {2} n ^ {3} + 10m ^ {3} n ^ {2} )[ / tex] 5. [tex](15x ^ {2}y - 4x y ^ {3} )( - 3xy)[ / tex].