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anonymous
 one year ago
Suppose X and Y represent two different school populations where X > Y and X and Y must be greater than 0. Which of the following expressions is the largest?
X2 + Y2
X2 − Y2
2(X + Y)
(X + Y)2
anonymous
 one year ago
Suppose X and Y represent two different school populations where X > Y and X and Y must be greater than 0. Which of the following expressions is the largest? X2 + Y2 X2 − Y2 2(X + Y) (X + Y)2

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Would you simply assign a value to each of the variables, say x=2 and y=1, and simply show the work for the output of each expression??

IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.0great idea to plug in some values to start with so smallest numbers are \(X, Y = 1,1\)  which sounds pretty dumb for a school population *but* you are only told that \(X,Y > 0,0 \) and no more info is provided. and, as you don't usually get half a teacher or half a student, you have started with \(X,Y = 1,1\); in which case the options evaluate as \( 2,0,4,4\) you can do the same for \(X,Y = 1, 2 \) and \( X, Y = 2,1\), and see how it pans out thereafter, if you next move onto more realistic assumption that \(X, Y \geq 2\), you know that \(X^2, Y^2 \gt X,Y > 4,4\) ad you can start to compare these properly using alebra alone not sure you're going to get a very satisfactory answer from this
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