When simplifying an expression like $5N^2 + 100N + 50$ to Big O notation, what aspects are discarded?

Answer

Constant factors and lower-order terms

Big O notation ignores constant factors and lower-order terms (like $100N$ and $50$) because they become insignificant compared to the dominant term ($N^2$) as the input size N approaches infinity.

When simplifying an expression like $5N^2 + 100N + 50$ to Big O notation, what aspects are discarded?
efficiencycomplexityalgorithmscalinginput size