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6. Calculati
a) 5²+9² - 2⁵
b) 3×7²-4²
c) 3×4³ +2×9²
d) (3³ - 6):21
e) (12² - 11²): 1²⁰
f) 5¹ (13² +4³);​


Răspuns :

Răspuns:

25+ 81 --32 =74

3×49 -16=131

3×64 + 2×81= 192 + 162= 354

(27-6):21=21:21=1

(144 -121):1=23:1=23

5 (169+64)=5 × 233=1165