AB = 6 cm, AC = 12 cm
Calculate the length of CD.
Give your answer to 3 significant figures.
C
12 cm
55°
D
B 6 cm
-А

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 *_*

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