1.
2(2b+4)+2(3-b)=4b+8+6-2b=2b+14 FAŁSZ
2.
(2b+4)*(3-b)=6b-2b²+12-4b=2b-2b²+12 PRAWDA
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1.
2(2b+4)+2(3-b)=4b+8+6-2b=2b+14 FAŁSZ
2.
(2b+4)*(3-b)=6b-2b²+12-4b=2b-2b²+12 PRAWDA