Find 3 odd consecutive integers such that the product of the first and third minus the middle integer is 338.
Ans:
Let the 3 odd integers be n-2,n and n+2
Product of 1st and 3rd =
Subtracting middle integer
Or
This is a simple quadratic equation which can be solved by factorizing.
So possible solutions for n are
or
Correspondingly, the 3 numbers are (-20,-18,-16) or (17,19,21)
Since is is not mentioned that the integers are positive, both solutions are valid.
Check:
Both are correct!
:)