Selesaikanlah ! 2a²bc+3abc²-5a²bc+ab²c-2abc²+11a²bc

2a²bc + 3abc² - 5a²bc + ab²c - 2abc² + 11a²bc
= (2a²bc - 5a²bc + 11a²bc) + ab²c + (3abc² - 2abc²)
= 8a²bc + ab²c + abc²
= abc(8a +b + c)