Question

dau coroana...ex 10 si 11....urgent
nu vreau batjocura doar pt puncte

Answer 1

la ex11:a 21×{4+4×[100-3 (325-300)]}+2=21×[4+4 (100-3×25)]}+2=21×[4+4×(100-75)]+2=21×(4+4×25)+2=21×(4+100)+2=21×400+2=8400+2=8402 si la b90+2×{3×2×[232-2×(2052-2050)]}=90+2×[3+2×(232-2×2)]=90+2×[3×2 (232-4)]=90+2×(3+2×228)=90+2×(3+456)=90+2×459=90+918=1008