document.write( "Question 564019: divide and simplify z^2-49/z divided by z+7/z+1. I started this problem by multiplying the first equation by the reciprical of the second equation. I came up with the answer z^3+z^2-49z-49/z(z+7) I'm not sure that I did this correctly. \n" ); document.write( "
Algebra.Com's Answer #365171 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
[(z^2-49)/z] / [(z+7)/(z+1)]
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\n" ); document.write( "Factor:
\n" ); document.write( "[(z-7)(z+7)/z] / [(z+7)/(z+1)]
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\n" ); document.write( "Invert the denominator and multiply:
\n" ); document.write( "= [(z-7)(z+7)/z] * [(z+1)/(z+7)]
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\n" ); document.write( "Cancel the (z+7) common to numerator and denominator to get:
\n" ); document.write( "---
\n" ); document.write( "(z-7)/z *(z+1)/1
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\n" ); document.write( "= (z^2-6z-7)/z
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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