Find the limits
the answer is - 3/4

Hello from MrBillDoesMath!

This is a puzzling one! The answer is indeed -3/4 but I was unable to prove it using mathematics appropriate to the "middle school" level. Sorry I couldn't be more helpful.

(To prove it I generated the first few terms of its Laurent series, a Calculus topic. The first few terms are  -(3/4) + (41/64x) +  and as x approaches  minus infinity the term with "x" in the denominator goes to zero, leaving the constant value -3/4 as the answer. )

Thank you,

MrB

use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative