# Problem Analysis:

The problem is to read the values of coefficient a,b,c of quadratic equation ax²+bx+c=0 and to find the equation of the roots.

i.e. r1 =(-b + sqrt (d) /(2*a);                                            d=(b*b)-(4*a*c);

r2=(-b- sqrt   (d)/(2*a);

Input variables          Processing variables      Output variables          Necessary header files

a(int)                             r1=(-b+sqrt(d)/(2*a);      r1(float)                         stdio.h

b(int)                             r2=(-b-sqrt(d)/(2*a);       r2(float)                         conio.h

c(int)                             d=(b*b) – (4*a*c);                                                 math.h

d(int)

r1(float)

r2(float)

## Algorithms:

1.start

2.Define : a,b,c.d,r1(float),r2(float).

3.Input : a,b,c from the user.

4. Calculate:

d=(b*b) -(4*a*c)

if (a>c),r1=(-b+sqrt(d)/(2*a);

r2=(-b-sqrt(d)/(2*a);

5.print the result as r1/r2 else the root is imaginary if d<0.

6.End.

## Outputs:

Compiling  , Debugging and  Testings

Enter  a   b  c:  100  300  200

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