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Dau coronita
2'°:2 la puterea 7+3•5+2²•2•3+7²+8³-6²•4²


Răspuns :

2'°:2⁷+3•5+2²•2•3+7²+8³-6²•4² =
=8+15+24+49+512-576 =
=96+512-576 =
=32

32=2⁵