Use the limit theorem and the properties of limits to find the limit.
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We have

As , all of terms with powers of in their denominators will converge to 0, leaving you with

making the answer B.

The value of limit is

Option B is correct.  

Step-by-step explanation:

Given:

Here we have rational function whose limit is minus infinity.

Divide numerator and denominator by highest degree of polynomial (x³)

Apply limit and we get

Hence, The value of limit is

more detail

step-by-step explanation:

its the second choice.

step-by-step explanation:

the elements in the range will be 7 less than the elements in the domain.