To simplify the expression \(4x − 3(2 + 7x)\), we will first distribute the \(-3\) to the terms inside the parentheses:
\[ 4x - 3(2) - 3(7x) = 4x - 6 - 21x \]
Now, combine the like terms:
\[ 4x - 21x - 6 = -17x - 6 \]
Therefore, the simplified expression is:
\(-17x - 6\)
So the correct answer is:
−17x − 6