27 red markers to 12 blue markers in simplest form

With #! i’ve tried to figure it out but i can’t.

1- identificar select the category that corresponds to each term. january 23 11: 59 pm unlimited attempts remaining grade settings 276-279 vocabulary list modelo fiesta quinceañera casada adolescencia viudo juventud navidad niñez vejez aniversario de bodas divorciado madurez cumpleaños soltera

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)