Question

x2 - 4÷x2 Simplify
$x {}^{2} - 4 \div x {}^{2}$
​

Answer 1

Answer:

Here's your answer

$\frac{ {x}^{2} - 4 }{ {x}^{2} } = - 4$

Answer 2

Consider the limit

limx→21x−2−4x2−4

I just need help with the implementation of this limit. Is the best way of solving it to multiply out the fraction?

So,

x2−4−4(x−2)(x−2)(x2−4)

And if that's the case... where do I go from there?

I'm sorry if this is extremely elementary!