Краткое пояснение:
Необходимо определить числовой коэффициент в каждом выражении.
а) 9 ⋅ m ⋅ 5 = 9 ⋅ 5 ⋅ m = 45 ⋅ m. Коэффициент: 45
б) −3 ⋅ (−23x) = (−3) ⋅ (−23) ⋅ x = 69 ⋅ x. Коэффициент: 69
в) 5c ⋅ (−9) = 5 ⋅ (−9) ⋅ c = −45 ⋅ c. Коэффициент: -45
г) −2a ⋅ 14 = (−2) ⋅ 14 ⋅ a = −28 ⋅ a. Коэффициент: -28
д) −a ⋅ c = −1 ⋅ a ⋅ c. Коэффициент: -1
е) −x ⋅ (−z) = (−1) ⋅ (−1) ⋅ x ⋅ z = 1 ⋅ x ⋅ z. Коэффициент: 1
Ответ: смотри решение выше