[{"id":"156268","type":"lessons","status":"on","uname":"operare-con-le-frazioni-algebriche","title":"Operare con le frazioni algebriche","description":"

Per quali valori di \\(a\\) la frazione \\(\\frac{a+1}{a^2+5 a+6}\\) perde significato?

\r\n
    \r\n
  1. \\(a=1\\) e \\(a=5\\)
    2. \r\n
  2. \\(a=-3\\) e \\(a=-2\\)
    3. \r\n
  3. \\(a=2\\) e \\(a=3\\)
    4. \r\n
  4. \\(a=5\\) e \\(a=6\\)
    5. \r\n
\r\n

[Prova INVALSI 2007, grado 11, domanda 26]

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Data l'equazione \\(2 x+3=3 x+b\\), quale valore si deve dare a \\(b\\) perché la soluzione sia \\(x=-8\\)?

\r\n
    \r\n
  1. \\(b=5\\)
    2. \r\n
  2. \\(b=-5\\)
    3. \r\n
  3. \\(b=11\\)
    4. \r\n
  4. \\(b=-11\\)
    5. \r\n
\r\n

[Prova INVALSI 2004, grado 11, domanda 25]

","body":null,"extra":null,"lang":null,"publish_start":null,"publish_end":null,"z_permissions":[],"zns_tags":[],"free_access":null,"short_title":null,"info":null,"relevant_isbns":null,"cta_label":null,"social_description":null,"locked":false,"created":"2024-10-18T10:41:16+02:00","modified":"2024-10-19T15:57:20+02:00","published":null,"created_by":25334,"modified_by":25334,"relation":{"priority":2,"inv_priority":1,"params":null}}]