а) f(2х) = 5(2х)^2 + 3(2х) - 2f(2х) = 5*4x^2 + 6x - 2f(2х) = 20x^2 + 6x - 2
б) f(x-1) = 5(x-1)^2 + 3(x-1) - 2f(x-1) = 5(x^2 - 2x + 1) + 3x - 3 - 2f(x-1) = 5x^2 - 10x + 5 + 3x - 3 - 2f(x-1) = 5x^2 - 7x
в) f(x в кубе) = 5(x^3)^2 + 3(x^3) - 2f(x в кубе) = 5x^6 + 3x^3 - 2
г) 2f(3x) = 2(5(3x)^2 + 3(3x) - 2)2f(3x) = 2(5*9x^2 + 9x - 2)2f(3x) = 2(45x^2 + 9x - 2)2f(3x) = 90x^2 + 18x - 4
а) f(2х) = 5(2х)^2 + 3(2х) - 2
f(2х) = 5*4x^2 + 6x - 2
f(2х) = 20x^2 + 6x - 2
б) f(x-1) = 5(x-1)^2 + 3(x-1) - 2
f(x-1) = 5(x^2 - 2x + 1) + 3x - 3 - 2
f(x-1) = 5x^2 - 10x + 5 + 3x - 3 - 2
f(x-1) = 5x^2 - 7x
в) f(x в кубе) = 5(x^3)^2 + 3(x^3) - 2
f(x в кубе) = 5x^6 + 3x^3 - 2
г) 2f(3x) = 2(5(3x)^2 + 3(3x) - 2)
2f(3x) = 2(5*9x^2 + 9x - 2)
2f(3x) = 2(45x^2 + 9x - 2)
2f(3x) = 90x^2 + 18x - 4