Question

[Roronoa Zoro]

1) CM:

\(\frac{x^2+y^2-z^2-2zt+2xy-t^2}{x+y-z-t}=\frac{x^2-y^2+z^2-2zt+2xz-t^2}{x-y+z-t}\)

2) Rut gon

\(\frac{\left(2^{4+4}\right)\left(6^4+4\right)\left(10^4+4\right)\left(14^4+4\right)}{\left(4^4+4\right)\left(8^4+4\right)\left(12^4+4\right)\left(16^4+4\right)}\)