Gena wants to estimate the quotient of –21.87 divided by 4.79. which expression shows the best expression to estimate the quotient using front-end estimation?

a -21 ÷ 4
b -21 ÷ 5
c -20 ÷ 4
d -20 ÷ 5

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 *_*