5. y(2-y)-(y-y^2) = 2y - y^2 - y + y^2 = y
6. 3ab * (4 * a^2 * b - 3 * a * b^2) при а = 1, b = -1,
7.
1)
2)
3)
5. y(2-y)-(y-y^2) = 2y - y^2 - y + y^2 = y
6. 3ab * (4 * a^2 * b - 3 * a * b^2) при а = 1, b = -1,
7.
1)
2)
3)