A Quadratic from Its Differences
Difficulty: Medium · Topics: Algebra, Functions, Functional Equations
Ayirmalaridan kvadrat funksiya
f is a quadratic function with f(x+1)-f(x)=4x+1 for all x, and f(0)=2.
Find f(3).
f — kvadrat funksiya, barcha x uchun f(x+1)-f(x)=4x+1, va f(0)=2.
f(3) ni toping.