Respuesta :

18x+9xy   (9x⋅2)+(9x⋅y   (9x⋅2)+(9x⋅y  You multiply 9x times 2 and then 9x times y.  Because a(b+c) = ab + ac

Answer:

18x+9xy

(9x•2)+(9x•y)

18x+(9x•y)

Step-by-step explanation:

I took the test online in K12 and when I reviewed it said that those are the correct answers.