Сократите дробь \[15-2b-b^2/(b^2+7b+10).\] \[(3-b)/(b+2)\] \[(3-b)/(2-b)\] \[(b-3)/(b+2)\] \[(b-3)/(2-b)\]
Задание

Сократите дробь

\[15-2b-b^2/(b^2+7b+10).\]

  • \[(3-b)/(b+2)\]

  • \[(3-b)/(2-b)\]

  • \[(b-3)/(b+2)\]

  • \[(b-3)/(2-b)\]