+0  
 
+5
152
1
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e^8x+8=2

Guest Mar 9, 2017
 #1
avatar+87334 
+5

e^(8x + 8)  = 2    take the ln of oth sides

 

ln e^(8x + 8)  = ln (2)   and we can write....

 

(8x + 8) * ln e  = ln (2)     and ln e  = 1, so we can forget this....and we have

 

8x + 8   =  ln (2)   subtract 8 from both sides

 

8x = ln (2) - 8    divide both sides by 8

 

x  = [ ln (2) - 8 ] / 8   ≈    - 0.913

 

 

 

cool cool cool

CPhill  Mar 10, 2017

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