SOLUTION: a^2+b^2=52 and a^2-b^2= 20 Solve for b

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Question 36932: a^2+b^2=52 and a^2-b^2= 20 Solve for b
Answer by venugopalramana(3286) About Me  (Show Source):
You can put this solution on YOUR website!
a^2+b^2=52 .......................I
and a^2-b^2= 20............................II
Solve for b
EQN.I-EQN.II GIVES
A^2+B^2-(A^2-B^2)=52-20=32
A^2+B^2-A^2+B^2=32
2B^2=32
B^2=32/2=16
B=+4 OR -4