Which of the following is equivalent to 3 cm?? A.
B.
6 mm2
30 mm
90 mm-
300 mm
C.
D.​

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 *_*