Answer:

Step-by-step explanation:
The expression is 
<u>We use the rule of exponents shown below to change the original to </u><u>"positive"</u><u> exponent form:</u>
<u>
</u>
<em>Now we can change the original expression given into positive exponent:</em>

Answer:
Y=3x(x-4)
Step-by-step explanation:
Answer
................. 60 seconds.. in a minute
Step-by-step explanation:
The amount of time of what?