Write the Word or Phrase That Best Completes Each Statement $x ^ { 4 } - x ^ { 3 } - 7 x ^ { 2 } + 5 x + 10 = 0 ; - 3 \leq r \leq - 2$

Short Answer

Write the word or phrase that best completes each statement or answers the question.
The equation has a solution r in the interval indicated. Approximate this solution correct to two decimal places.
- $x ^ { 4 } - x ^ { 3 } - 7 x ^ { 2 } + 5 x + 10 = 0 ; - 3 \leq r \leq - 2$