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2014-10-02T17:26:00+03:00
√2)³ +(√4)³ + (√8)³ + (√16)³ + (√32)³  =2√2+4√4+16√16+32√16√2=
2√2+4*2+16*4+32*4√2=2√2+8+64+128√2=130√2+72
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