What property is 12(x+4)=12x+48

This is the distributive property.

Step-by-step explanation:

Notice how they are multiplying the twelve by both numbers in the parenthesis, this is known as distributing. Whenever you multiply a number and a variable you usually just connect them, except for 12 and 4, they must be multiplied together as they are like terms.

If this is still confusing, be sure to ask me some more questions!

no oblique asymptote

step-by-step explanation:

to find the oblique asymptote of f(x)

here numerator has degree 1 and denomintor degree 2

degree of numerator < degree of denominator

hence there is no oblique asymptote

when the degree of the denominator > that of the numerator, we saw that the value in the denominator got so much bigger, so quickly,   giving us a horizontal asymptote of the x-axis. or we can write

f(x) = a polynomial of x + a proper fraction.

in this case only we have oblique asymptotes but not when numerator has less degree.