int main()
{
    double X;
    int a = -4,
        b = 10,
        c = 5,
        d = -7;
    X = pow(d, 3) +((b * b) - 3 * c * b) / (pow(a, 2) + 9) + 350;
    std::cout << "X= "<<X;
}

.686P
.MODEL         FLAT, STDCALL
.STACK         4096
.DATA
MB_OK        EQU    0
m        EQU        481h    ;m = 350d
str_format      DB     "X = %d",0
str_buffer     DB    256 dup (0)
m_title        DB    "Lab #5",0
A            DB      0Ch     ;a = -4
B            DB         0FCh    ;b = 10
C1                DB      0F0h    ;c = 5
D            DB         02h     ;d = -7
X            DD      ?

    extern MessageBoxA@16:NEAR
    extern wsprintfA:NEAR
.CODE
Start:
            XOR     eax, eax    ;ax = 0
            MOV     al, C1       ;al = b
            CBW                    ;ax = b
        
            XOR     ebx, ebx     ;bx = 0
            MOV     bl, A          ;bl = b
            IMUL    bx             ;ax = b^2
            IMUL    bx             ;ax = c*b
            IMUL    bx             ;ax=b^2-3*c*b

            SUB     eax, eax       ;ax = ax-3
            
            XOR     ebx, ebx       ;bx = 0
            MOV     bl, D            ;bl = a
            IDIV    bx                ;ax = a^2+9
            XOR     ebx, ebx       ;ebx = 0
            MOV     ebx, eax       ;bx = ax = (ax-3*c) / a^2+9
        
            XOR     eax, eax        ;ax = 0
            MOV     al, D             ;al = d
            IMUL    ax                 ;ax = d^3

            ADD      ebx, eax     ;bx = d*3 + ((b^2-3*c*b) / a^2+9) 
            ADD      ebx, m       ;bx =  d*3 + ((b^2-3*c*b) / a^2+9) +350
            MOV     BYTE PTR[X], bl
  

            PUSH    X
            PUSH    OFFSET str_format
            PUSH    OFFSET str_buffer
            CALL    wsprintfA
            ADD     esp, 12

            PUSH    MB_OK
            PUSH    OFFSET m_title
            PUSH    OFFSET str_buffer
            PUSH    0
            CALL    MessageBoxA@16

            RET
END Start

                    <!-- /форма авторизації для співробітників  -->
                 <form action ="auth.php" method="post">
                    <input type="text" class="form-control" name="login" placeholder="Логін"> <br>
                    <input type="password"  class="form-control"name="pass" placeholder="Пароль"><br>
                     <button class="btn btn-succes" type="submit">Авторизація</button>
                </form>

<?php
    session_start();
        ?>
    <?php require_once "database.php"; ?>
     
    <?php
    
    if(isset($_SESSION["session_username"])){

    header("Location: intropage.php");
    }
 
    if(isset($_POST["login"])){
 
    if(!empty($_POST['username']) && !empty($_POST['password'])) {
    $username=htmlspecialchars($_POST['username']);
    $password=htmlspecialchars($_POST['password']);
    $query =mysql_query("SELECT * FROM usertbl WHERE username='".$username."' AND password='".$password."'");
    $numrows=mysql_num_rows($query);
    if($numrows!=0)
 {
while($row=mysql_fetch_assoc($query))
 {
    $dbusername=$row['username'];
  $dbpassword=$row['password'];
 }
  if($username == $dbusername && $password == $dbpassword)
 {
 
    //  session_start();
     $_SESSION['session_username']=$username;    

   header("Location: intropage.php");
    }
    } else {
      $message = "Invalid username or password!";
    
    echo  "Invalid username or password!";
 }
    } else {
    $message = "All fields are required!";
    }
    }
    ?>

<?php
    session_start();
    unset($_SESSION['session_username']);
    session_destroy();
    header("location:login.php");
    ?>

<div id="welcome">
 <h2>Вітаємо, <span> USER </span></h2>!
    <p><a href="logout.php">Вийти</a> з системи</p>
</div>