解
6m^5n³÷2mn
=3m^4n²
-4x²yz÷(-2xy)
=2xz
(4/5a³b²-2a²b³)÷(-ab)
=(ab)(4/5a²b-2ab²)÷(-ab)
=-4/5a²b+2ab²
(12a³-a²+3a)÷3a
=4a²-(1/3a)+1
解
6m^5n³÷2mn
=3m^4n²
-4x²yz÷(-2xy)
=2xz
(4/5a³b²-2a²b³)÷(-ab)
=(ab)(4/5a²b-2ab²)÷(-ab)
=-4/5a²b+2ab²
(12a³-a²+3a)÷3a
=4a²-(1/3a)+1