Untitled

<html lang="pl">
	<head>
		<script type="text/javascript">
			function eurazjer(){
			var a = document.getElementById("polea").value;
			a = parseInt(a);
			var b = document.getElementById("poleb").value;
			b = parseInt(b);
			var wynik=(a*a)+(2*a*b)+(b*b)
			document.getElementById("pies").innerHTML=("Wynik to: "+wynik+".");
			}
		</script>
		<meta charset="UTF-8"/>
	</head>

	<body>
		Podaj A:</br>
		<input type="text" id="polea" name="" /></br>
		Podaj B:</br>
		<input type="text" id="poleb" name=""/></br>
		<input type="text" id="wzór" value="a^2+(2*a*b)+b^2" disabled/>
		<input type="submit" value="Oblicz" onclick="eurazjer()"/></br>
		<div id="pies"></div>
	</body>
</html>