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Let x and y be real numbers such that xy=9 Find the set of all possible values of x+y

 Sep 12, 2021
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Let x and y be real numbers such that xy=9 Find the set of all possible values of x+y

 

x times y is 9, meaning that there are 3 possible numbers for both x and y

x=1, 3, 9

y=1, 3, 9

 

1+9=10

9+1=10

3+3=6

 

Yay!

 Sep 12, 2021

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