16 x 2 m 1 4 x 3m 8 0 July 8, 2019 16 32 64 128 16 ×2=8 1) (m ^ 2 - 2m) ^ 2 - 1 2) 16 - (m ^ 2 + 4m) ^ 2 3) x ^ 2 - 18xy + 81y ^ 2 - z ^ 2 16 x 4 1/2
