Answer: The expression in simplified form is D. 3x³√15
To simplify the expression, we can first simplify the fractions.
2/1356 can be simplified to 12/225.
Then, we can use the distributive property to simplify the expression further.
12/225 - 3√156 = 12/225 - 18√15
The last step is to combine the terms,
12/225 - 18√15 = (-6/75) - (6√15) = -6/5 * (1/5 - √15) = -6 * (- √15/5) = 3 * √15 * 6
Therefore, the simplified form of the expression is D. 3x³√15
Explanation: