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If (x + y)^2 = 25 and xy = 6, what is the value of x^2 + y^2?

 Jun 12, 2021
 #1
avatar+2266 
+2

(x + y)^2 = x^2 + y^2 + 2xy

Can you take it from here?

 

=^._.^=

 Jun 12, 2021
 #2
avatar
0

$x^2 + y^2 + 6 =25$

 

$x^2+y^2= \boxed{19}$

 

-mps

 Jun 12, 2021
 #3
avatar+2266 
+1

Nice job mps.

However, I think you forgot the 2xy part. 

 

=^._.^=

catmg  Jun 13, 2021

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