Problema Solution
The product of two people's ages is 3190. One is three years older than the other. What are their ages?
Answer provided by our tutors
Let x = younger person's age
x + 3 is the older person's age
x (x + 3 ) = 3190
x^2 + 3x = 3190
x^2 +3x - 3190 = 0
(x-55)(x+58) = 0
Now solve those for zero
x - 55 = 0
x = 55
or x +58 = 0
x = - 58 (you cannot be negative 58 years old, so this answer is no good)