Question

Rozwiąż równiania:

Answer 1

 

5^x = 625

5^4 = 625

x=4

  

16:2 = 8

16 :8^1 =2

x=1

  

(2^2)^2 = 16

2^x = 1024*16 = 16384

2^14 = 16384

x=14

  

2^x * 16 = 64

64:16 =4

2^2 =4

x=2

 

3^2*9^3 = 837

x = 5

obliczalem na kalkulatorze i pokolei wbijalem cyfry jak cos ;)

 

 

 

Answer 2

5^x = 25^2

5^x = ( 5^2)^2

5^x = 5^(2*2)

5^x = 5^4

x = 4

=====

16 : 8^x = 2

8^x = 8

x = 1

=====

( 2^x)^2 = 16

2^(2x) = 2^4

2x = 4

x = 2

===========

2^x = 4^5 * 16

2^x = 4^5 * 4^2

2^x = 4^( 5 + 2)

2^x = 4^7

2^x = (2^2)^7

2^x = 2^14

x = 14

==========

2^x * 4^2 = 64

2^x = 64 : 16

2^x = 4

2^x = 2^2

x = 2

=====

[ 3^2 * 9^3]/3^x = 27

[ 3^2 * (3^2)^3]/ 3^x = 3^3 

[ 3^2 * 3^6]/ 3^x = 3^3

3^8 / 3^x = 3^3   / : 3^3

3^5/ 3^x = 1

3^x = 3^5

x = 5

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