racket-cas
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Missing parenthesis around negative number in factor in unnormalized expression
Simpler example:
> (!v '(* 3 1 -2))
"$3\\cdot -2$"
> (!v '(+ (* 3 (expt 1 2)) (* 3 1 -2) (expt -2 2)))
"$3\\cdot 1^{2}+3\\cdot {-2}+(-2)^{2}$"