If x and y are integers and $(xy + x)$ is odd, which of the following must be even?

Question

Accepted Answer

সঠিক উত্তর: । ব্যাখ্যা: Here, either xy or x must be odd since only Odd + Even = Odd. X cannot be even because then xy will also be even. So x is odd and xy is even If xy is even and x is odd, it means y must be even.

If x and y are integers and \((xy + x)\) is odd, which of the following must be even?