Cho biểu thức \( S = \frac{x^2 + y^2}{x + y} \), với \( x = 4 \) và(04)
This image is part of a curated gallery related to Rummormillnews Warning Signs You Shouldn’t Ignore. All visuals are selected to provide relevant visual reference for the topic.
Image gallery: Rummormillnews Warning Signs You Shouldn’t Ignore