Can someone plz help me with this? I need to find the length of H and I also need an explanation

Its d so thats how it would would back from 1.0 form three four two

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 *_*