Решение задания 2

a) g(0) = 2 * 0² - 3 * 0 + 1 = 0 - 0 + 1 = 1
g(2) = 2 * 2² - 3 * 2 + 1 = 2 * 4 - 6 + 1 = 8 - 6 + 1 = 3
g(0) + g(2) = 1 + 3 = 4

б) g(1) = 2 * 1² - 3 * 1 + 1 = 2 - 3 + 1 = 0
g(-1) = 2 * (-1)² - 3 * (-1) + 1 = 2 * 1 + 3 + 1 = 2 + 3 + 1 = 6
g(1) + g(-1) = 0 + 6 = 6

в) g(-2) = 2 * (-2)² - 3 * (-2) + 1 = 2 * 4 + 6 + 1 = 8 + 6 + 1 = 15
g(0) = 2 * 0² - 3 * 0 + 1 = 0 - 0 + 1 = 1
g(-2) - g(0) = 15 - 1 = 14