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Three consecutive positive odd integers $a$, $b$ and $c$ satisfy $b^2 - a^2 = 344$ and $c^2 - b^2 > 0$. What is the value of $c^2 - b^2$?

 Apr 12, 2018

Best Answer 

 #1
avatar+102441 
+4

Three consecutive positive odd integers $a$, $b$ and $c$ satisfy $b^2 - a^2 = 344$ and $c^2 - b^2 > 0$. What is the value of $c^2 - b^2$?

 

b-2, b,  b+2        where a is odd

 

\(b^2-(b-2)^2=344\\ b^2-b^2+4b-4=344\\ 4b-4=344\\ b-1=86\\ b=87 \)

 

a=85

b=87

c=89

 

89^2-87^2   = 352

 Apr 13, 2018
 #1
avatar+102441 
+4
Best Answer

Three consecutive positive odd integers $a$, $b$ and $c$ satisfy $b^2 - a^2 = 344$ and $c^2 - b^2 > 0$. What is the value of $c^2 - b^2$?

 

b-2, b,  b+2        where a is odd

 

\(b^2-(b-2)^2=344\\ b^2-b^2+4b-4=344\\ 4b-4=344\\ b-1=86\\ b=87 \)

 

a=85

b=87

c=89

 

89^2-87^2   = 352

Melody Apr 13, 2018
 #2
avatar+101761 
+2

Nice, Melody   !!!!

 

 

cool cool cool

CPhill  Apr 13, 2018
 #3
avatar+603 
+2

Thank you!

gueesstt  Apr 13, 2018

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