5.34 Упростите выражение и подчеркните его коэффициент: (a)-21.x(-4); г) а (-0,5) 4,4; 7 -1 б) -7,9-10.y; д) -4,1 х (-4); 3)-1-m 11'; 6 в) 8 (-2,5) n; e) ·η·(-22); 11 и) 0,16. t. (3)

Краткое пояснение:

Нужно упростить каждое выражение и определить его коэффициент. а) −21 ⋅ x ⋅ (−4) = (−21) ⋅ (−4) ⋅ x = 84 ⋅ x. Коэффициент: 84 б) −7,9 ⋅ 10 ⋅ y = (−7,9) ⋅ 10 ⋅ y = −79 ⋅ y. Коэффициент: -79 в) 8 ⋅ (−2,5) ⋅ n = 8 ⋅ (−2,5) ⋅ n = −20 ⋅ n. Коэффициент: -20 г) a ⋅ (−0,5) ⋅ 4,4 = (−0,5) ⋅ 4,4 ⋅ a = −2,2 ⋅ a. Коэффициент: -2,2 д) −4,1 ⋅ x ⋅ (−4) = (−4,1) ⋅ (−4) ⋅ x = 16,4 ⋅ x. Коэффициент: 16,4 е) 8/11 ⋅ n ⋅ (−22) = 8/11 ⋅ (−22) ⋅ n = −16 ⋅ n. Коэффициент: -16 ж) 7/9 ⋅ x ⋅ (−1 2/7) = 7/9 ⋅ (−9/7) ⋅ x = −1 ⋅ x. Коэффициент: -1 з) −1 5/6 ⋅ m ⋅ 6/11 = (−11/6) ⋅ 6/11 ⋅ m = −1 ⋅ m. Коэффициент: -1 и) 0,16 ⋅ t ⋅ (3/8) = 0,16 ⋅ 3/8 ⋅ t = 0,06 ⋅ t. Коэффициент: 0,06

Ответ: смотри решение выше