document.write( "Question 419737: add. Simplify if possible.
\n" ); document.write( "4z/z^2-4+z/z-2 \n" ); document.write( "

Algebra.Com's Answer #293442 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
4z/z^2-4 + z/z-2
\n" ); document.write( "----
\n" ); document.write( "lcd = z^2-4
\n" ); document.write( "---
\n" ); document.write( "Rewrite each fraction with the lcd as its denominator:
\n" ); document.write( "[4z/lcd] + [z(z+2)/lcd]
\n" ); document.write( "---
\n" ); document.write( "Add to get:
\n" ); document.write( "[4z+z(z+2)]/lcd
\n" ); document.write( "---
\n" ); document.write( "Combine:
\n" ); document.write( "= [z^2+6z]/[z^2-4]
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "================== \n" ); document.write( "

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