Untitled

<html>
<head>
<title>WYNIK</title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<center><code><p style="font-size: 25px;"><b>WYNIK</b></p></code></center><br>
<hr><center>
<?php

$lewy =  ($_GET['l']);
$prawy = ($_GET['p']);

$delta = $_GET['b'] * $_GET['b'] - 4 * $_GET['a'] * $_GET['c'];
echo "Delta wynosi: {$delta}.<br>";


$x = (-$_GET['b']) / (2 * $_GET['a']);
echo "X wierzchołka to: {$x}.<br>";


if($x > $lewy && $x < $prawy){
    $q = (pow($_GET['a'] * $x,2) + $_GET['b'] * $x + $_GET['c'] );
        echo "Wartość q to: $q.<br>";
    $x1 = ( - $_GET['b'] - sqrt($delta) ) / 2 * $_GET['a'];
        echo "x1 wynosi: " .$x1. ".";
    $x2 = ( - $_GET['b'] + sqrt($delta) ) / 2 * $_GET['a'];
        echo "x2 wynosi: " .$x2. ".";
}

?>  </center>
</body>
</html>