3,9,27,81

find a8
in geometric seqence

then find the value

No because if you do the higher number minus the lower number you will get a positive. if you do it the other way around you will get a negative number

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 *_*