Select all the sets that are the three side lengths of right triangles √8, 11, √129
3, 4, 5
5, 11, 13
√1, 2, √3
8, 9, 15​

Idon’t know the answer to this

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 *_*