問數學1條....(急!!)

2006-11-17 5:21 am

2的3次方 x (-3的2次方) - 4的3之方 =幾多??

回答 (8)

2006-11-18 12:22 am

=8x (-9)-64
=-72-64
=-136

2006-11-17 16:24:13 補充：
=8x9-64=72-64=136

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2006-11-17 6:20 am

2的3次方 x (-3的2次方) - 4的3之方
^~轉返做數字先~~
(2x2x2)x(-3x-3)-(4x4x4)
=8x9-64
=72-64
=8

*(-3x-3)<~係負負得正既~^^

參考: 我自己計架~

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2006-11-17 5:36 am

2的3次方 x (-3的2次方) - 4的3之方
=8x9-64
=8

參考: 家

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2006-11-17 5:27 am

2的3次方 x (-3的2次方) - 4的3之方
=8x9-64
=8

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2006-11-17 5:26 am

2的3次方 x (-3的2次方) - 4的3之方 =2的3次方*(9)-4的3之方
=8*9-4的3之方
=72-64
=8
=2的3次方

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2006-11-17 5:26 am

=8x9-64
=8

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2006-11-17 5:25 am

= 8 x 9 - 64
= 72 - 64
= 8

中間部分的乘數負負得正

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2006-11-17 5:25 am

2的3次方 x (-3的2次方) - 4的3之方
=8x9-64
=8

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