document.write( "Question 36932: a^2+b^2=52 and a^2-b^2= 20 Solve for b \n" ); document.write( "

Algebra.Com's Answer #22693 by venugopalramana(3286) $\"\"$ $\"About$

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a^2+b^2=52 .......................I
\n" ); document.write( "and a^2-b^2= 20............................II
\n" ); document.write( " Solve for b
\n" ); document.write( "EQN.I-EQN.II GIVES
\n" ); document.write( "A^2+B^2-(A^2-B^2)=52-20=32
\n" ); document.write( "A^2+B^2-A^2+B^2=32
\n" ); document.write( "2B^2=32
\n" ); document.write( "B^2=32/2=16
\n" ); document.write( "B=+4 OR -4 \n" ); document.write( "

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