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爱吃小笼包的-小笼包

#1 Created at ... [Delete] [Delete and Lock User] 
def quadratic(a, b, c):    d = b ** 2 - 4 * a * c    if d >= 0:        x1 = (-b + math.sqrt(d)) / (2 * a)        x2 = (-b - math.sqrt(d)) / (2 * a)    else:        print("无解")    return x1, x2
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