document.write( "Question 762879: Solve for z: z2-8z=9\r
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Algebra.Com's Answer #464256 by stanbon(75887)\"\" \"About 
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z2-8z=9 \r
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\n" ); document.write( "z^2 - 8z - 9 = 0
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\n" ); document.write( "(z-9)(z+1) = 0
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\n" ); document.write( "Ans: z = 9 or z = -1
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\n" ); document.write( "Cheers,
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