Air is being pumped into a spherical balloon at a rate of 28 ft^3/min. At what rate is the radius changing when the radius is 3 feet?

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 *_*