What is the reciprocal of 2 and 3/5 ? need asap!

Sum is 17 and their difference is 3

Find the value of x. give reasons to justify your solutions! h ∈ ig

Answer asap! show all work! find the number of complex roots, the possible number of real roots and the possible rational roots of the polynomial function. then, solve for all roots. x^3 + 2x^2 + 3x + 6 = 0