Question

$frac{3x}{1-2x+4 x^{2} } * (-1- 8^{3}x)$

Answer 1

$frac{3x}{ (1+ 2х )^{3} }$

Answer 2

3х
---------------- * (-1-8х³) =
1-2х+4х²


3х
---------------- *( -1)* (1+(2х)³) =
1-2х+4х²

3х
---------------- * (-1)* (1+2х)(1-2х+4х²) = 3х* (-1)* (1+2х) = - 3х* (1+2х)
1-2х+4х²