Answer:
[tex] \frac{x}{2} . \frac{ {x}^{2} - 2x - 24 }{4} . \frac{8}{x + 4} [/tex]
[tex] = \frac{x}{2} . \frac{ {x}^{2} - 6x + 4x - 24x }{4} . \frac{8}{x + 4} [/tex]
[tex] = \frac{x}{2} . \frac{x(x - 6) + 4(x - 6)}{4} . \frac{8}{x + 4} [/tex]
[tex] = \frac{x}{2} . \frac{(x - 6)(x + 4)}{4} . \frac{8}{x + 4} [/tex]
[tex] = x(x - 6)[/tex]
[tex] = {x}^{2} - 6x[/tex]
