Answer:
[tex]$\frac{3456\left(x-3\right)}{5x\left(x+3\right)}$[/tex]
Step-by-step explanation:
[tex]$ \frac{12^4(x-3)(x+5) }{30x(x+3)(x+5)} $[/tex]
[tex]$\frac{12^4\left(x-3\right)}{30x\left(x+3\right)}$[/tex]
[tex]$\frac{2^8\cdot \:3^4\left(x-3\right)}{2\cdot \:3\cdot \:5x\left(x+3\right)}$[/tex]
[tex]$\frac{2^7\cdot \:3^3\left(x-3\right)}{5x\left(x+3\right)}$[/tex]
[tex]$\frac{3456\left(x-3\right)}{5x\left(x+3\right)}$[/tex]