The answer is d hope it helps
Answer:

Step-by-step explanation:
Rewrite the equation using the next propierties:

Cancel logarithms by taking exp of both sides:

Multiplying both sides by -x and factoring:

Factoring:

The solutions are:

Evaluating x=-4

This is an absurd because ln(x) is undefined for 
Evaluating x=-1

Which is correct, hence the solution is:

Answer:
9x^2 +6x -5
Step-by-step explanation:
The x^2 terms are like terms and can be combined.
16x^2 -5 +6x -7x^2
= (16 -7)x^2 +6x -5
= 9x^2 +6x -5
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<em>Additional comment</em>
The expression is in standard form when the terms are in decreasing order by their degree.
Look at steps 2 and 3. Steps 4 and 5 have the same two reasons.