<h3>
<u>Explanation</u></h3>

- Factor the expression by using common factor.
We csn pull out 3x² out of the expression.

We simply pull out the x-term with lowest degree and 3 out of the expression. If another expression cannot be factored after first factoring then that's the final answer.
- The expression can still be factored. Factor the expression by using two brackets.


<h3>
<u>Answer</u></h3>

Answer:
n= -7
Step-by-step explanation:
Answer:
try b hope this helped
Step-by-step explanation:

Taking natural logs of both sides, we get
0.015t=ln 3
t = ln 3/0.015 = 73.24
The answer is 73.24 years.