#include <stdio.h>
#include <stdlib.h>
#include <math.h>

float g(float x);

int main ()
{
	float a;
	printf("Entrez x : ");
	scanf("%f",&a);
	printf("3x^2+7x-12 = %.0f", g(a));

printf("\n\n");
system("PAUSE");
return 0;
}

float g(float x)
{
	float y;
	y=3*pow(x,2)+7*x-12;
	return y;
}