document.write( "Question 116511: Rewrite the middle term as the sum of two terms and then factor completely.
\n" ); document.write( "4z^3-18z^2-10z
\n" ); document.write( "I think I'm thinking too hard \n" ); document.write( "

Algebra.Com's Answer #84720 by jgr45(31) $\"\"$ $\"About$

You can put this solution on YOUR website!
Rewrite the middle term as the sum of two terms and then factor completely.
\n" ); document.write( "4 $\"z%5E3\"$ -18 $\"z%5E2\"$ -10z
\n" ); document.write( "I think I'm thinking too hard
\n" ); document.write( "___________\r
\n" ); document.write( "\n" ); document.write( "Um, I think you are, too ;)\r
\n" ); document.write( "\n" ); document.write( "Seriously though, a better approach is to start by factoring out a 2z:\r
\n" ); document.write( "\n" ); document.write( "(2z)(2 $\"z%5E2\"$ -9z-5)\r
\n" ); document.write( "\n" ); document.write( "Then, factor the remaining polynomial. We're looking for factors of -5 that total -9 after multiplying one of the factors by 2...and it so happens that -5 and 1 work if they are placed thusly:\r
\n" ); document.write( "\n" ); document.write( "(2z)(2z+1)(z-5) (answer) \n" ); document.write( "

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