SOLUTION: If the difference of two brothers is 4 years and the product of their ages is 221. Find the ages of the two brothers.

Question 1022151: If the difference of two brothers is 4 years and the product of their ages is 221. Find the ages of the two brothers.
Found 2 solutions by josgarithmetic, addingup:
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!

You will form a quadratic equation in one variable, solve, and determine the value of the other variable.

You can also try to factorize 221, but common techniques for this will not be too obvious. Three digit product - look for some lower prime numbers and try a division....

13 and 17 as other tutor already posted.
Answer by addingup(3677) (Show Source): You can put this solution on YOUR website!
x-y = 4
xy = 221
factor 221 and you end up with two prime numbers:
221 = 13*17 and
4 = 17-13
We have the correct answer.
RELATED QUESTIONS
The difference of the ages of two brothers is 4 years and the product of their ages... (answered by RoRo Jaxson)
The difference of the present ages of two brothers is 4 years,5years ago,if the product... (answered by mananth)
if the ratio of two brothers' ages is 3 : 2 and their total age is 60 years old, what is (answered by Maths68)
the sum of the ages two brothers is 38.four years ago the age of the elder brothers was... (answered by josgarithmetic,greenestamps)
The sum of the ages of the two brothers is 20.In five years, one is twice the other. Find (answered by ptfile)
The sum of the ages of two brothers is 38 years 4 years ago the age of the Elder brother... (answered by Alan3354)
The difference between the ages of two brothers today is 4 years. five years ago, the... (answered by lwsshak3)
the sum of the ages of the two brothers is 20 In five years one is twice the other.Find... (answered by josgarithmetic)
The product of two brothers' ages is 35. They are two years apart. How old are they? (answered by josmiceli,Alan3354)