Calculate the value of x, given line segment fm = 4x and line segment mn = 7x – 21.

x = 7

x = 5

x = 6

x = 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 *_*