(680x680+320x320-680x320)
=2
(680x680x680+320x320x320)
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0
Answer:
347200000
Step-by-step explanation:
680×680×680+320×320×320=
680×680×680=314432000 +
320×330×320=32768000
=314432000+32768000
=347200000 ans.
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