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‭姜楠

#1 Created at ... [Delete] [Delete and Lock User] 
double a = 1.0;double b = 3.0;double c = -4.0;double r1 =0;double r2 =0;r1 =(-b+Math.sqrt(b*b-4*a*c))/2*a;r2 =(-b-Math.sqrt(b*b-4*a*c))/2*a;System.out.println(r1);System.out.println(r2);

暖阳下的懒猫^ω^

#2 Created at ... [Delete] [Delete and Lock User]

得亏a=1，后面不打括号的，都扣分！

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