Find Age of 3 Brothers

What we had here before my edit was an excrutiating example of me being wrong at math.

I shall retire from math tutoring forthwith.

That's not right Lash

Let x be the youngest brothers age. The others are x+2 and x+4.

The product of the first and third buys ages are x(x+4) this is equal to twenty plus the middle boys age 20+2(x+2)

Set these equal and you'll get a quadratic equation. Factor this quadratic and you'll get one answer that makes sense and another that doesn't make sense. It should be even and positive. Now you know all ages, so checking the answer is easy (& non-trivial).

Rap.

ok
Thank you raprap. You are great.