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Identify whether or not an expression is a polynomial. Part of HELM Book 1.2
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", "advice": "$\\var{latex(q1_expr_array[0])}$ contains a fraction term with the variable $\\var{expression(letter)}$ on the denominator, so it is not a polynomial.
\n$\\var{latex(q1_expr_array[1])}$ contains a fraction term with the variable $\\var{expression(letter)}$ on the denominator, so it is not a polynomial.
\n$\\var{latex(q1_expr_array[2])}$ contains a term with the square root of the variable $\\var{expression(letter)}$, so it is not a polynomial.
\n$\\var{latex(q1_expr_array[3])}$ is a linear polynomial.
\n$\\var{latex(q1_expr_array[4])}$ is a quadratic polynomial.
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