Let a and b be the solutions to 5x^2 - 11x + 4 = 0. Find 1/(a + 1) + 1/(b + 1).
I answered this question 1 year ago: https://web2.0calc.com/questions/please-help_2738
you should use vietas to find the solutions, then plug in. I will write a solution as soon as I get back home