1.3.66²-4×1.33²(要过程和答案!)2.202²+202×196+98²(要过程和答案!)
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![1.3.66²-4×1.33²(要过程和答案!)2.202²+202×196+98²(要过程和答案!)](/uploads/image/z/3153131-35-1.jpg?t=1.3.66%26%23178%3B-4%C3%971.33%26%23178%3B%EF%BC%88%E8%A6%81%E8%BF%87%E7%A8%8B%E5%92%8C%E7%AD%94%E6%A1%88%21%EF%BC%892.202%26%23178%3B%2B202%C3%97196%2B98%26%23178%3B%EF%BC%88%E8%A6%81%E8%BF%87%E7%A8%8B%E5%92%8C%E7%AD%94%E6%A1%88%21%EF%BC%89)
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1.3.66²-4×1.33²(要过程和答案!)2.202²+202×196+98²(要过程和答案!)
1.3.66²-4×1.33²(要过程和答案!)
2.202²+202×196+98²(要过程和答案!)
1.3.66²-4×1.33²(要过程和答案!)2.202²+202×196+98²(要过程和答案!)
1.(2*1.33+1)^2-4*1.33^2=(2*1.33)^2+2*(1.33*2)+1-4*1.33^2=4*1.33+1=6.32
2.202^2+2*202*98+98*2=(202+98)^2=90000
3.66²-4×1.33²=(2×1.33+1)²-1.33²=4×1.33²+1+4×1.33-4×1.33²=1+5.32=6.32
202²+202×196+98²=202²+2×98×202+98²=(202+98)²=300²=90000第1题中:=(2×1.3...
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3.66²-4×1.33²=(2×1.33+1)²-1.33²=4×1.33²+1+4×1.33-4×1.33²=1+5.32=6.32
202²+202×196+98²=202²+2×98×202+98²=(202+98)²=300²=90000
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3。66平方-2x1.33 x2x1.33=3.66平方-2.66平方=(3.66-2.66)乘以(3.66+2.66)=6.32
202平方+202x98 x2+98平方=(202+98)平方=300的平方=9000