# How do you solve the equation log(x)+log(x-8)=log9?

##### 1 Answer

Feb 9, 2018

#### Answer:

#### Explanation:

Use

#log(x(x - 8)) = log9#

Therefore:

#x^2 - 8x = 9#

#x^2 - 8x - 9 = 0#

#(x- 9)(x + 1) = 0#

#x = 9 or -1#

But

Hopefully this helps!