importPackage(java.io);
importPackage(java.lang);
// your code goes here
var a = 1.5;
var b = 4;
var c = 2;
var d = 3;
var e = 1.2;
var f = 4.3;
var e1 = ( a * ( c + d ) ) / ( b * ( e + f ) );
var e2 = (potencia(a, b+c) ) / ( e + f );
var e3 = (a + ((potencia(c+d, 2))/potencia(b, 2))*d)*1/c;
var e4 = (-b+raizQuadrada(potencia(b,2)-4*a*c))/2;
alert("a) ",e1);
alert("b) ",e2);
alert("c) ",e3);
alert("d) ",e3);
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