Simplify $2x-3+x+4x^2.$

Acceptable solution:

Simplify $2x-3+x+4x^2.$


\begin{displaymath}\begin{array}{cl}
\par & 2x-3+x+4x^2\\
= & 4x^2 + 2x + x - 3\\
= & \fbox {4$x^2$\ + 3$x$\ - 3}\end{array}\end{displaymath}

Unacceptable solution:

Simplify $2x-3+x+4x^2.$


\begin{displaymath}\begin{array}{l}
\par 2x-3+x+4x^2\\
4x^2 + 2x + x - 3\\
\fbox {4$x^2$\ + 3$x$\ - 3}\end{array}\end{displaymath}