Verified answer

Ответ:

1)

[tex]- 12 {p}^{2} - 59p - 72[/tex]

2) а-28

Решение:

[tex](3p + 8)( - 9 - 4p) = -27p - 12 {p}^{2} - 72 - 32p = - 59p - 12 {p}^{2} - 72 = - 12 {p}^{2} - 59p - 72[/tex]

[tex](a - 4)(a + 7) - a(a + 2) = {a}^{2} + 7a - 4a - 28 - a(a + 2) = {a}^{2} + 7a - 4a - 28 - a ^{2} - 2a = 7a - 4a - 28 - 2a = a - 28[/tex]