MathDB
Find a+b

Source:

May 18, 2015
algebra

Problem Statement

If a,ba,b are real numbers such that a3+12a2+49a+69=0a^3 +12a^2 + 49a + 69 = 0 and b39b2+28b31=0, b^3 - 9b^2 + 28b - 31 = 0, find a+b.a + b .