Question

Помогите пожалуйста.

Answer 1

${(m + 6)}^{2} = {m}^{2} + 12m + 36$

${(9x - \frac{1}{18} {y}^{4} )}^{2} = {81x}^{2} - x {y}^{4} + \frac{1}{324} {y}^{8}$

${(0.4a {b}^{2} - 0.7 {b}^{3} {c}^{4} ) }^{2} = 0.16 {a}^{2} {b}^{4} - 0.56a {b}^{5} {c}^{4} + 0.49 {b}^{6} {c}^{8}$

${( - 3a - 4b)}^{2} (3a - b) = 27 {a}^{3} + 63 {a}^{2} b + 24a {b}^{2} - 16 {b}^{3}$