ГДЗ по алгебре 7 класс Макарычев Задание 772

\[\boxed{\text{772\ (772).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]

\[\textbf{а)}\ (3a + 6)^{2} = \left( 3 \cdot (a + 2) \right)^{2} =\]

\[= 9 \cdot (a + 2)^{2}\]

\[\textbf{б)}\ (12b - 4)^{2} = \left( 4 \cdot (3b - 1) \right)^{2} =\]

\(= 16 \cdot (3b - 1)^{2}\)

\[\textbf{в)}\ (7x + 7y)^{2} = \left( 7 \cdot (x + y) \right)^{2} =\]

\[= 49 \cdot (x + y)^{2}\]

\[\textbf{г)}\ ( - 3p + 6)^{3} = \left( 3 \cdot (2 - p) \right)^{3} =\]

\[= 27 \cdot (2 - p)^{3}\]

\[\textbf{д)}\ (5q - 30)^{3} = \left( 5 \cdot (q - 6) \right)^{3} =\]

\[= 125 \cdot (q - 6)^{3}\]

\[\textbf{е)}\ (2a - 8)^{4} = \left( 2 \cdot (a - 4) \right)^{4} =\]

\[= 16 \cdot (a - 4)^{4}\ \]