An art gallery has 9 paintings to display along a hallway. how many different ways can they choose and display 6 of the paintings?

All you would really need to do is 9*6 = 54 and that's how many different ways you can choose and display the paintings. 

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 *_*