Answer:
3(x8y)
Explanation:
The idea is too keep everything in balance. From the solution the only one that keeps it, after multiplying each term is 3(x8y) = 3*x*3*8*y = 3x24y
One for exemple 3(3x24y) = 9x72y
The other ones takes even an extra step and transform the equation in polynomial (~ equation with squared variables)