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39x400+[23+2x(23-2x3)]

Răspuns :

= 15600+[23+2x(23-6)]=
= 15600+(23+2x17)=
= 15600+(23+34)=
= 15600+57=
= 15657
39x400+[23+2x(23-2x3)]=
15600+[23+2x(23-6)]=
15600+[23+2x17]=
15600+[23+34]=
15600+57=15657