2018 UNM-PNM Statewide High School Mathematics Contest II Problems/Problem 5

Problem

Let $x$ and $y$ be two real numbers satisfying $x-4\sqrt{y} = 2\sqrt{x-y}$ . What are all the possible values of $x$ ?

2018 UNM-PNM Contest II (Problems • Answer Key • Resources)
Preceded by Problem 4	Followed by Problem 6
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10
All UNM-PNM Problems and Solutions