Question

Заполните пустые клетки

Answer 1

${c}^{2} - 81 = (c - 9)(c + 9) \\ {m}^{2} - 20m + 100 = {(m - 10)}^{2} \\ {25x}^{2} - 40x + 16 = {(5x - 4)}^{2}$

${d}^{2} - 25 = (d - 5)(d + 5) \\ 64 - {b}^{4} = (8 - {b}^{2} )(8 + {b}^{2} )$