The first four terms of a geometric sequence is a1 = 3
a2=12
a3=48
a4=192
what formula can be used to find an
hurry

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 *_*

Not sure what the question is but i hope this x = years100 * x