Question

Пж помогите даю 77 баллов ​

Answer 1

Ответ:

Ответ внизу на фото

Объяснение:

Answer 2

N4

а) 3yx^2 + 6xy^2 + 3y^3 = 3y(x^2 + 2xy + y^2) = 3y(x + y)^2

б)a^2 - 2ab + b^2 - c^2 = (a - b)^2 - c^2 = (a - b - c)(a - b + c)

в) a^2 - b^2 - a + b = (a - b)(a + b) - (a - b) = (a + b - 1)(a - b)

г)5a^2 - 10ab + 5b^2 = 5(a^2 - 2ab + b^2) = 5(a - b)^2

д) x^2 + 2xy + y^2 - z^2 = (x + y)^2 - z^2 = (x + y + z)(x + y - z)

е) c + d + c^2 - d^2 = c + d + (c - d)(c + d) = (c - d + 1)(c + d)

ж) 7xy^2 + 28xy + 28x = 7x(y^2 + 4y + 4) = 7x(y + 2)^2

з) 9 - m^2 + 4mn - 4n^2 = 9 - (m - 2n)^2 = (3 + m - 2n)(3 - m + 2n)

и) x^3 - yx^2 - xy^2 + y^3 = x^2 (x - y) - y^2 (x - y) = (x + y)(x - y)^2

к) 4p^2 - 20pq + 25q^2 - 36 = (2p - 5q)^2 - 6^2 = (2p - 5q - 6)(2p - 5q + 6)

л) m^3 + nm^2 - mn^2 - n^3 = m^2 (m + n) - n^2 (m + n) = (m - n)(m + n)^2