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Amphitrite1040
Hey there! 

All of the "b" factors are like terms (-8b ,  5b) 
The "8" is a constant 
The "10b2" is a variable and constant 

From the looks of it "-8b, 5b" (option A.) would most likely be your answer

Good luck on your assignment and enjoy your day! 

~[tex]MeIsKaitlyn:)[/tex]
the answer for this questions is A. negavtive eight b, and positive five b