作业帮math problem-------------------------quickly数a比数b与c的和大于16,a的平方比b与c的和的平方大1664；那么a ,b ,c的和等于多少?
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math problem-------------------------quickly数a比数b与c的和大于16,a的平方比b与c的和的平方大1664；那么a ,b ,c的和等于多少?
math problem-------------------------quickly
数a比数b与c的和大于16,a的平方比b与c的和的平方大1664；那么a ,b ,c的和等于多少?
math problem-------------------------quickly数a比数b与c的和大于16,a的平方比b与c的和的平方大1664；那么a ,b ,c的和等于多少?
a-(b+c)=16
a^2-(b+c)^2=1664=[a-(b+c)][a+(b+c)]=16(a+b+c)
a+b+c=104
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