Question

Can someone please help me with this math question?
Please? I will fan and give a medal!!
Please help me to simplify this rational expression -
x^2-1 x-1
-------- / -----
2x 4x^2
**Note the / means to divide

Answer 1

-5

Answer 2

\[\frac{x^2-1}{2x}\div \frac{x-1}{4x^2}\]
\[\frac{(x-1)(x+1)}{2x}\times \frac{4x^2}{x-1}\]

Answer 3

Cancel the common factors and multiply