Answer:
B, C, and E.
Explanation:
36x + 12
A. 4(9x) = 36x, does not work; missing the 12.
B. 3(12x + 4) = 36x + 12, works.
C. 6(6x + 2) = 36x + 12, works.
D. 6x(6x + 2) = 36x^2 + 12x, does not work; both terms have an extra x multiplied to them
E. 4(9x + 3) = 36x + 12, works.