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{[(48x32-345)x2-(43x17-123)x3]+(23x2-12x3)x5-234}

Răspuns :

{[(1536-345)x2-(731-123)x3]+(46-36)x5-234}=
=[(1191x2-608x3)+10x5-234]
=2382-1824+50-234
=374