An electronics store is having a 20% off sale on all cell phones. the original price of a cell phone is x dollars. Which expression represents the sale price of a cell phone

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 *_*