document.write( "Question 293809: Solve for z, where z is a real number\r
\n" ); document.write( "\n" ); document.write( "√(4z+12) = z
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Algebra.Com's Answer #212032 by user_dude2008(1862)\"\" \"About 
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√(4z+12) = z\r
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\n" ); document.write( "\n" ); document.write( "4z+12 = z^2\r
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\n" ); document.write( "\n" ); document.write( "z^2-4z-12=0\r
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\n" ); document.write( "\n" ); document.write( "(z-6)(z+2)=0\r
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\n" ); document.write( "\n" ); document.write( "z=6 or z=-2\r
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\n" ); document.write( "\n" ); document.write( "only answer is z=6
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