58.6×1.6+18.4×53.6-20×53.6 用提公因式法分解因式.

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58.6×1.6+18.4×53.6-20×53.6 用提公因式法分解因式.
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58.6×1.6+18.4×53.6-20×53.6 用提公因式法分解因式.
58.6×1.6+18.4×53.6-20×53.6 用提公因式法分解因式.

58.6×1.6+18.4×53.6-20×53.6 用提公因式法分解因式.
=58.6X1.6+53.6X(18.4-20)
=58.6X1.6-53.6X1.6
=1.6X(58.6-53.6)
=1.6X5
=8
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53.6×1.6+18.4×53.6-20×53.6
= 53.6×(1.6+18.4-20)
= 53.6×(20-20)
= 0
 
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53.6×(18.4-20)+58.6×1.6再提1.6

58.6×1.6+18.4×53.6-20×53.6
= 58.6×1.6 - (20 - 18.4)×53.6
= 58.6×1.6 - 1.6×53.6
= 1.6×(58.6 - 53.6)
= 1.6×5
=8

58.6*1.6+53.6(18.4-20)