36•27+36•15-36•42

To solve the expression \(36 \cdot 27 + 36 \cdot 15 - 36 \cdot 42\), you can factor out the common term \(36\):

\[ 36 \cdot 27 + 36 \cdot 15 - 36 \cdot 42 = 36 \cdot (27 + 15 - 42) \]

Now calculate the expression inside the parentheses:

\[ 27 + 15 = 42 \] \[ 42 - 42 = 0 \]

Now, substitute back into the expression:

\[ 36 \cdot (27 + 15 - 42) = 36 \cdot 0 = 0 \]

Therefore, the result of the original expression is:

\[ \boxed{0} \]