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ajutati-ma va rog . dau 40 pct

Ajutatima Va Rog Dau 40 Pct class=

Răspuns :

(97+3)(97-3)=100**94=9400
(100+11)(100-11)=100²-11²
(68+2)²
(2012-12)(2012+12)=2000*2024=2024000*2=4048000
(47-7)²=40²=1600
(183-17)(183+17)=166*200=33200
(91+9)²=100²=10000
(2,1-0,1)²=2²=4