Need help. Can't identify error.

**Beginner here. This is the first program I made. There seems to be an error. Please help me fix it. Thanks.**

Code:

`#include <stdio.h>`

int main()

{

int a, b, c, ans1, ans2, ans3, ans4, ans5;

printf("Think of three Real numbers... \n\n\n");

printf("Enter your first number\n");

scanf("%d", &a);

printf("Enter your second number\n");

scanf("%d", &b);

printf("Enter your third number\n");

scanf("%d", &c);

ans1 = a*-(b+c);

ans2 = (b*b)-4(a*c);

ans3 = (a*a)+(b*b*b)+(c*c)-12;

ans4 = ((a+b)/(c-b))-(3(b*b))+((4(b))/(3(c)));

ans5 = 3(a*a)-2(b*b)-9.14;

printf("\nFor equation 1, we have the answer %d,\nFor equation 2, we have %d,\nFor equation 3, we have %d,\nFor equation 4, we have %d and,\nFor equation 5, we have %d, ", ans1, ans2, ans3, ans4, ans5);

return 0;

}