A quadratic equation in c

[ioannoual]

Hi...I 'am new in C and I want a program that solves a quadratic equation!!

I try something by my self to write some code about that but I want you to help me writing a new one that will work!!

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

int main(void)

{

float a,b,c,d,root1,root2;

printf("Welcome to the Quadratic Equation Solver\n");
printf("----------------------------------------\n");
printf("Please enter the 3 coefficients a, b, c : \n");
printf("Enter coefficient a: \n");
scanf("%f", &a);
printf("Enter coefficient b: \n");
scanf("%f", &b);
printf("Enter coefficient c: \n");
scanf("%f", &c);
printf("Enter coefficient d: \n");
scanf("%f", &d);

if(a == 0 && b == 0)
printf("Both a and b cannot be 0 in ax^2 + bx + c = 0 \n");

}else

d=-c/b;
{
printf("The solution of the linear equation is : \n");


}else{

d=b*b-4*a*c;

if(d>0)

root1=(-b+sqrt(d))/(2*a);
root2=(-b-sqrt(d))/(2*a);
{
printf("The first root = \n");
printf("The second root = \n");

return 0;
}
}

I need it as soon as possible!!!

Thankssss very much!

[chroot]

Why do you have the user enter d?
Apart from that, the program should work

[MarshMallow]

Hi Ioannual,your programs doesn't work simply because there is a big syntax errors in it;the curly brace of main is closed just before the first else clause;i strongly reccommend to use a syntax driven editor;or if you are already using an IDE,pleas turn on the "match braces" options,that will save you a lot of time.
And please next time attach the messages that the compiler print on screen after compiling,that will help us to find the error.