Respuesta :

4Cat7

Answer:

B

Step-by-step explanation:
45x + 10

A) 1(9x + 2)
= 9x + 2

B) 5(5x + 2 + 4x)
= 25x + 10 + 20x
= 45x + 10

C) 5(10 + 4x + 5x)
= 50 + 20x + 25x
= 45x + 50

D) 3(3x + 2)
= 9x + 6

So, in conclusion, the answer to this question is B.

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