A Cubic Inequality Without Expanding
Difficulty: Medium · Topics: Algebra, Functions, Properties of Functions
Qavslarni ochmasdan kub tengsizlik
Let f(x)=x^3+2x.
How many natural numbers x satisfy f(2x-3)<f(x+1)?
f(x)=x^3+2x bo‘lsin.
Nechta natural x f(2x-3)<f(x+1) ni qanoatlantiradi?