Question

fatore completamente 27a elevado a 2- 18a +3

Answer 1

27a²-18a+3=27*(a-a')*(a-a'')  ...a' e a'' são as raízes de 27a²-18a+3

27a²-18a+3=0

a'=a''=[18+√(324-324)]/54=18/54=2/6

27a²-18a+3=27*(a-2/6)*(a-2/6)