Complete the work shown to answer the question. p2 – 14p – 72 = 0 p2 – 14p = 72 p2 – 14p + 49 = 72 + 49 which describes the solutions of the equation? since 7 and 11 are both rational, the sum and difference are rational. since 14 and 11 are both rational, the sum and difference are rational. since 7 is rational and is irrational, the sum and difference are irrational. since is irrational and 11 is rational, the sum and difference are irrational.