4. What are the factors for 9x - 17 - 12?
A. -17 and -12
B. 9 and x.
C. 9, -17 and -12

Um what? rephrase that ?

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 *_*