Question

Ex 7 c), e), f) Va rog ajutați-mă

Answer 1

Răspuns:

c) 3² *3³= 3⁵=243

2⁵⁴ : 2⁵²= 2²=4

(3⁵)⁴=3²⁰

(3⁵)⁴: 3²⁰=1

=> [243+4+1]:31= 248:31=8

e) 576=24²

24²:576=24²:24²=1

(3²*2)¹⁵:(3²⁹*2¹⁵)=(3²)¹⁵:3²⁹*2¹⁵:2¹⁵=3³⁰:3²⁹*1=3*1=3

1²¹=1

=> 10*{1+3*[3+1]}:13=10*(1+12):13=10*13:13=10

f) 2⁵⁰*2⁴⁸+(2¹⁰*2¹⁵)⁵:2²⁷= (2⁵⁰*2⁴⁸)+(2⁵⁰*2⁷⁵):2²⁷=2⁵⁰(2⁴⁸+2⁴⁸)=2⁵⁰*2⁴⁹

(5⁷⁶:5⁷⁵-3)⁹⁰*2⁸=(5-3)⁹⁰*2⁸=2⁹⁰*2⁸=2⁹⁸

=> 2¹⁰⁰:(2⁵⁰*2⁴⁹+2⁹⁸+2⁹⁸)=2¹⁰⁰:2⁵⁰*2⁴⁹+2¹⁰⁰:2⁹⁹=2⁵⁰*2⁴⁹+2