Y'=5x^4
y''=20x^3
в)
..............................
5/10 + 2/10 = 7 / 10 - приводи к общему знаменателю
А рисунок сам нарисуй
7 42 6 2
--- x (10+8)= --- = 4 --- =4 ---
27 9 9 3
11 11 5
--- x (11-5)= --- = 1---
36 6 6
(1/3)^((2x - 3)(4 -x) - 10) = 9^(x^2)
9^(-0,5*((2x - 3)(4 -x) - 10)) = 9^(x^2)
-0,5*((2x - 3)(4 -x) - 10) = x^2
-4x + x^2 + 6 - 3/2 x + 5 = x^2
11/2 x = -11
x = - 2