PLEASE HELPP IM TIMED AND I HAVE ONLY 1 HOUR LEFT.
NO LINKSS

The answer is f(-2)=-8
1)put -2 in for X
2) 2(-2)-4
3) -4-4= -8

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 *_*