1.345*2.69-1.345^2-0.345^2计算过程是?

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1.345*2.69-1.345^2-0.345^2计算过程是?
1.345*2.69-1.345^2-0.345^2计算过程是?

1.345*2.69-1.345^2-0.345^2计算过程是?
=1.345*（2.69-1.345)-0.345^2
=1.345^2-0.345^2
=(1.345+0.345)*(1.345-0.345)
=1.69*1
=1.69

1.345*2.69-1.345^2-0.345^2
=-【1.345²-2×1.345×0.345＋0.345²】
=-（1.345-0.345）²
=-1²
=-1

方法1：
1.345*2.69-1.345^2-0.345^2
=2*0.345*1.345-1.345^2-0.345^2-2*0.345*1.345+1.345*2.69
=-(1.345-0.345)^2+1.345*(2.69-2*0.345)
=-1+1.345*2
=1.69

方法2;
1.345*2.69-1.345...

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方法1：
1.345*2.69-1.345^2-0.345^2
=2*0.345*1.345-1.345^2-0.345^2-2*0.345*1.345+1.345*2.69
=-(1.345-0.345)^2+1.345*(2.69-2*0.345)
=-1+1.345*2
=1.69

方法2;
1.345*2.69-1.345^2-0.345^2
=13.45*1.345*2-1.345^2-0.345^2
=1.345^2-0.345^2
=（1.345+0.345)(1.345-0.345)
=1.69*1
=1.69

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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*0.345^2 1.345*0.345*2.69-1.345^3-1.345^3*0.345^2help! 1.345*0.345*2.69-1.345*1.345*1.345-1.345*0.345*0.345 1.345*2.69-1.345^2-0.345^2计算过程是? 1.345 × 0.345× 2.69 -1.345×1.345-1.345×0.345×0.345 1.345×0.345×2.69—1.345^2-1.345×0.345^2×2简便计算 1.345×0.345×2.69—1.345^2－1.345×0.345^2等于多少 计算1.345*0.345*2.69-1.345^2-1.345*0.345^2看清楚！ 1.345乘0.345乘2.69-1.345的平方-1.345乘0.345的平方乘2 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的平方-1.345×0.345的平方 运用整式乘法公式 0.345^2 +1.345^2-0.345*2.69 用简便运算计算 1.345×0.345×2.69-1.3453-1.345×0.3452 0.345²+1.345²－0.345×2.69 1.345×0.345×2.69－1.345的三次方－1.345×0.345平方= 1.345的平方*0.345*2.69减去1.345的平方减1.345*0.345的平方 1.345*0.345*2.69-1.345的3次方-1.345*0.345的平方