(-4)(+6)(-7)

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(-4)(+6)(-7)
(-4)(+6)(-7)

(-4)(+6)(-7)
原式=（-4）*（-7）*6
=28*6
=168

(-4)(+6)(-7)
=24*7
=168

168

(-4)(+6)(-7)=98

4,5,6,7, 4 5 6 7 4 5 6 7 4、5、6、7, 4 5 6 7 4,5,6,7 4,5,6,7, 4,5,6,7 4,5,6,7 (-4)(+6)(-7) 4 6 7题, 4,5,6,7 4、5、6、7、 4 5 6 7 4 5 6 7 4,5,6,7 4 5 6 7 4,5,6,7