Answer:
The given expression is : 12 + 5 (-3 n -8)
As the meaning of term factor is to break a real number into parts having real number as it's factors or a polynomial into parts containing constants and variables or a polynomial into term containing variable and constant and constant only or Variable and constant and variable only.
So, In the given expression 12 + 5 (-3 n -8) :
The factor is→5 , (-3 n -8) i.e constant and term containing variable and constant.