I am attempting to use the following LaTeX code in New Quizzes using the MathQuill feature. Here is the code. By the way, this code works perfectly in Classic Quizzes using the Insert Math Equation option. I am unable to copy and paste this code into the text box for MathQuill. Am I missing something? Your help is appreciated.

CODE: 

\text{Consider the matrix}\\

\quad\\

\begin{align*}

A =  \left[

\begin{array}{cccc}

2&4&5&1\\   

3&-1 &-2 &-7\\         

2&6&4&\sqrt{2}

\end{array}

 \right]

\end{align*}\\

\quad\\

\text{What is }a_{23}\text{?}