Ashopkeeper sold a book for rs.40 and gets 15% profit. if he wants to get 20% profit then what will be the actual price of book? ?

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 *_*