Thursday

March 26, 2015

March 26, 2015

Posted by **Marcos** on Wednesday, October 30, 2013 at 9:46pm.

I would like help to solve this what i did was to take away the square root i squared both sides coming up with

(ln sqrt(x-8))^2= (5)^2

ln(x-8)=25

am i alowed to do this with ln in the equation?

then i subtract 8 from both sides

ln x = 17

e^(ln x)= e^17

e cancels out ln leaving with

x=e^17

this is not right the real answer is

x = 8 + e^10 on math-way but how?

thanks

- Pre-calc Solve logarithmic -
**Steve**, Thursday, October 31, 2013 at 5:19amNot even close.

ln√(x-8) = 5

1/2 ln(x-8) = 5

ln(x-8) = 10

x-8 = e^10

x = 8+e^10

**Answer this Question**

**Related Questions**

algebra solving log equations - n sqrt(x-8)= 5 I would like help to solve this ...

Algebra - Solve for s: h=(square root of 3)times s/2 and solve for h V= (pi)r ...

math - Solve for the indicated variable A=1/2 bh Solve for b 2A = bh, so b = 2A/...

math - determine the area of triangle abc when side ab= square root of x, side ...

maths - how do i solve this equation? 21(X-(1/7))^2= 3/7 thx Divide both sides ...

Surds - Solve in the exact form. (sqrt of 4x+1)+(sqrt of x+1)=2 Someone showed ...

radical equation - 2^x+20=15+3^x A)1 B)16 C)-5 D)25 I chose c but i got it wrong...

Math - How do you find a square root of a number that's not a perfect square? I'...

algebra - simplify: square root of 5 + square root of 20 - square root of 27 + ...

Math check - Solve: sqrt(7x-5)+sqrt(15x+4)=sqrt(30x+31) would I square both ...