YOSSi2 YOSSi2
  • 26-04-2017
  • Mathematics
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How to solve this problem?

How to solve this problem class=

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Аноним Аноним
  • 26-04-2017
3^(x+4) = 6^(2x-5)

take logs  

ln 3^x+4 = ln 6^2x-5

(x+4) ln3 = (2x-5)ln5

x + 4              ln5
---- --      =     ------ =   1.465
2x - 5            ln3

x + 4 =  2.93x -  7.325

x =     11.325 / 1.93  = 5.868
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