Question

найдите f(x) ..........​

Answer 1

Ответ:

f(x) = x² + 5x - 4

Объяснение:

f(x - 1) = x² + 3x - 8

f(x) = f(x-1 + 1)

f(x) = (x + 1)² + 3 · (x + 1) - 8

f(x) = x² + 2x + 1 + 3x + 3 - 8

f(x) = x² + 5x - 4