document.write( "Question 130155: (square root 13 + square root z) (square root 13 - square root z) \n" ); document.write( "
Algebra.Com's Answer #95073 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
(square root 13 + square root z) (square root 13 - square root z)
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\n" ); document.write( "this follows the form (a+b)(a-b) = a^2-b^2
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\n" ); document.write( "Your problem:
\n" ); document.write( "= 13 -z
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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