Which pair of numbers are not opposites?
| 7 | and - 7
27 and | 27 |
72 and - 72
27 and - 27

Im thinking its 27 and |27| because its both positives.

Answer to your question: a. the fundamental theorem of algebra tells you that the equation will have two complex roots since the degree of the polynomial is 2. the roots are ​ x=1±i7√2 .number of roots=degree of polynomialhere, degree of polynomial is 2 so number of roots will be 2.hope it *_*