To find out oblique asymptote we divide the polynomials using long division
To find quotient divide the first term. then multiply the answer with 3x+5 and write it down. Subtract it from the top. Repeat the process till we get remainder.
We can use the product rule of counting to answer this:
There are 4 possibilities for the 1st digit There are 4 possibilities for the 2nd digit There are 4 possibilities for the 3rd digit So we use the product rule of counting to give us: