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a) 3¹² : 3¹⁰ + (3×5)¹⁰ : 15⁹ - 2011⁰ × 1²⁰¹¹

b) 4¹³ : 8⁶ + 7³ - 5² × [625:5⁴+16 :(7×3²-55)]​

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Dianageorgiana794ask

Răspuns:

a) 3¹² : 3¹⁰ + (3×5)¹⁰ : 15⁹ - 2011⁰ × 1²⁰¹¹=

3¹²⁻¹⁰+15¹⁰⁻⁹-1·1=

3²+15¹-1=9+15-1=23

b) (2²)¹³:(2³)⁶+7³-5²[5⁴:5⁴+16:(7·9-55)]=

2²ˣ¹³:2³ˣ⁶+343-25·(1+16:8)=

2²⁶:2¹⁸+343-25·3=

2²⁶⁻¹⁸+343-75=

2⁸+343-75=

256+343-75=524

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