document.write( "Question 311954: Facto: 30z^2 - 87z + 30 \n" ); document.write( "
Algebra.Com's Answer #223052 by mollukutti(30)\"\" \"About 
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30z^2 - 87z + 30
\n" ); document.write( "=3(10z^2 -29z +10)
\n" ); document.write( "=3(10z^2 -25z -4z +10)
\n" ); document.write( "=3{5z(2z-5)-2(2z-5)}
\n" ); document.write( "=3(2z-5)(5z-2)
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