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$7b^2+8b+4$
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", "rulesets": {}, "contributors": [{"name": "Lubomira Tosheva", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/3619/"}]}]}], "contributors": [{"name": "Lubomira Tosheva", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/3619/"}]}