(x) \( 4 \times 3+4 x+3 \)

This expression can be simplified by applying the distributive property. Distributing \( (x) \) across the entire expression \( 4 \times 3 + 4x + 3 \) allows us to rewrite it as \( 4x + 12 + 4x + 3 \). Combining like terms results in \( 8x + 15 \). Thus, the expression simplifies nicely into a linear format! For a real-world application, simplifying algebraic expressions is a key step in solving equations, which in turn is crucial in fields like engineering, economics, and physics. Whether you’re calculating the trajectory of an object or determining costs in a business venture, the ability to simplify and manipulate equations can help you make informed decisions based on your calculations!