# Question #82e26

##### 3 Answers

#### Explanation:

"A" is rather similar to "4" so I suppose there is a typo in between.

Putting

Solving for

Here we go and obtain

#### Explanation:

Solve:

We see from inspection that LHS of both equations (1) and (2) are equal. Therefore, RHS of both the equations must be equal.

Writing this in exponential form by definition of

or

Inserting the value of

LHS can be written using the rule for, addition of

or

Equating with RHS

Taking

or

Using the split the middle term method

or

or

We get two roots by putting each factor

#x+4=0#

or#x=-4# #2x-1=0#

or#x=1/2#

Since

A=4 and

#### Explanation:

The derivations for x = -4 and 1/2 are as in other two answers.

log of negative argument is unreal.

The RHS