Question

(5y + 4)^2
(2x + 7y)^2
(0,3 - 9)^2
(4n + 0,05x)^2
(a^4 - b^2)^2

Answer 1

Ответ:

${(5y + 4)}^{2} = 25 {y}^{2} + 40y + 16$

${(2x + 7y)}^{2} = 4 {x}^{2} +28xy + 49 {y}^{2}$

${(0.3 - 9)}^{2} = 0.09 - 5.4 + 81 = 75.69$

${(4n + 0.05x)}^{2} = 16 {n}^{2} + 0.4nx + 0.0025 {x}^{2}$

${( {a}^{4} - {b}^{2}) }^{2} = {a}^{8} - 2 {a}^{4} {b}^{2} + {b}^{4}$