1.345*0.345*2.69-1.345^3-1.345*0.345^2

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1.345*0.345*2.69-1.345^3-1.345*0.345^2

1.345*0.345*2.69-1.345^3-1.345*0.345^2
1.345*0.345*2.69-1.345^3-1.345*0.345^2

1.345*0.345*2.69-1.345^3-1.345*0.345^2
1.345*0.345*2.69-1.345^3-1.345*0.345^2
=-1.345*(-2*0.345*1.345+1.345^2+0.345^2)
=-1.345*(1.345-0.345)^2
=-1.345*1
=-1.345

1.345*0.345*2.69-1.345^3-1.345*0.345^2
=1.345*(0.345*2.69-1.345^2-0.345^2)
=1.345*[0.345*(2.69-0.345)-1.345^2]
=1.345*(0.345*2.345-1.345^2)
=1.345*[(1.345-1)(1.345+1)-1.345^2]
=1.345*(1.345^2-1-1.345^2)
=1.345*(-1)
=-1.345

1.345*(0.345*2.69-1.345^2-0.345^2)
括号里面是(1.345-0.345)^2
所以结果就是1.345

设1.345=a
a[(a-1)2a-a^2-(a-1)^2]
=a[2a^2-2a-a^2-(a^2+1-2a)]
=a(2a^2-2a-a^2-a^2-1+2a)
=a(-1)
1.345*(-1)
=-1.345

1.345*0.345*2.69-1.345*1.345*1.345-1.345*0.345*0.345 1.345 × 0.345× 2.69 -1.345×1.345-1.345×0.345×0.345 1.345*0.345*2.69-1.345^3-1.345*0.345^2 1.345×0.345×2.69-1.345的平方-1.345×0.345的平方 1.345*0.345*2.69-1.345^2-1.345*0.345^2 1.345*0.345*2.69-1.345^3-1.345^3*0.345^2help! 0.345²+1.345²－0.345×2.69 用简便运算计算 1.345×0.345×2.69-1.3453-1.345×0.3452 1.345*2.69-1.345^2-0.345^2计算过程是? 运用整式乘法公式 0.345^2 +1.345^2-0.345*2.69 1.345的平方-0.345×2.69+0.345的平方 1.345²－0.345×2.69＋0.345² 计算:1.345×0.345×2.69-1.345²-1.345×0.345²×21.345×0.345×2.69-1.345²-1.345×0.345²×2请注意题目并没有错误!还有速度、质量 1.345×0.345×2.69—1.345^2－1.345×0.345^2等于多少 1.345×0.345×2.69—1.345^2-1.345×0.345^2×2简便计算 计算1.345*0.345*2.69-1.345^2-1.345*0.345^2看清楚！ 1.345×0.345×2.69－1.345的三次方－1.345×0.345平方= 1.345乘0.345乘2.69-1.345的平方-1.345乘0.345的平方乘2