Frac m 4n 8 m 6n 4 July 8, 2019 16 32 64 128 Frac 4 m^2 + 2mn - n^2 8 m^2 + 3 n^2 Frac 64m^ 7 n^ 4 -72m^ 5 n^ 3 8m^ 3 n
