Need output explanation

Question

Someone please explain how the answer is 65 for the below CODE.
#define x 10+5
Int main()
{
int a=x*x;
printf("%d",a);
return 0;
}

Answer 1

https://www.sololearn.com/Discuss/1125512/?ref=app

Answer 2

x is 10+5
So a = x*x = 10+5*10+5
According to BODMAS or operator precedence, multiplication is performed first. So 50+15=65.

Answer 3

Thank you all now I have understood.