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Va rog frumos imi trebuie lu
ni la sc ne note plang!! Problemele dupa poza 1,2 si trei va dau 25 de puncte si coroana!!


Va Rog Frumos Imi Trebuie Luni La Sc Ne Note Plang Problemele Dupa Poza 12 Si Trei Va Dau 25 De Puncte Si Coroana class=

Răspuns :

1. (5^2+15×6):5-2^2×5+3 =
(25+90):5-4×5+3 =
115 :5 -20+3 =
23-20+3 = 3+3 = 6

2. A (2+3)^2 =5^2 =25
B 2^2+3×2 = 4+3×2 = 4+6=10
C (2^2+3)×2 = (4+3)×2=7×2=14

3. 10+4×3^2-7×5-(3+2^3) =
10+4×9-35-(3+8) =
10+36-35-11 =
46-35-11 =
11-11= 0

2017-{[42-(5^2×14-85×4)×2]×3+2^6} =
2017 - {[42-(25×14-340)×2]×3+64} =
2017-[42-(350-340)×2]×3+64]=
2017-[42-10×2]×3+64] =
2017-(42-20)×3+64 =
2017-22×3+64 =
2017-66+64=
1951+64= 2015

(10^2-7^2+5^4)×(233^0+1^1500) =
(100-49+256)×(1+1) =
(51+625)×2=
676×2= 1342