document.write( "Question 723606: is 9z^2-30z+25 a perfect square trinomial ? \n" ); document.write( "
Algebra.Com's Answer #443353 by stanbon(75887)\"\" \"About 
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is 9z^2-30z+25 a perfect square trinomial ?
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\n" ); document.write( "= (3z-5)(3z-5)
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\n" ); document.write( "Answer: Yes
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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