Using formulas and multiplicating with variables

 The program will ask you for the numbers and show the result, for my opinion, I'll put a clrscr(); under the first getchar();. I have to learn the pow instruction, I knew how to do this without the math.h header but I lost that code. Nevermind, enjoy the program.

#include <stdio.h>

main()
{
      int a, b, st_rslt, nd_rslt;
      printf("Enter the first number ");
      scanf("%d", &a);
      printf("Enter the second number ");
      getchar();
      scanf("%d", &b);
      st_rslt = (a+b)*(a-b);
      nd_rslt = (a * a) - (b * b);
      printf("The result of the (a+b)*(a-b) formula is %d", st_rslt);
      getchar();
      getchar();
      printf("The result of the a^2-b^2 formula is %d", nd_rslt);
      getchar();
}