Please help me, with steps and answer.

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?

Given abc find the values of x and y. in your final answer, include all of your calculations.