1.159^2+1.159*7.682+3.841^用简便方法计算
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1.159^2+1.159*7.682+3.841^用简便方法计算
1.159^2+1.159*7.682+3.841^2用简便方法计算
1.159^2+1.159*7.682+3.841^2用简便方法计算
![1.159^2+1.159*7.682+3.841^用简便方法计算](/uploads/image/z/11658346-34-6.jpg?t=1.159%5E2%2B1.159%2A7.682%2B3.841%5E%E7%94%A8%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%AE%A1%E7%AE%97)
1.159^2+1.159*7.682+3.841^2=1.159^2+2*1.159*3.841+3.841^2=(1.159+3.841)^2=5^2=25,注意将7.682变成2*3.841,剩下的你懂的,a^2+2ab+b^2,这种形式