document.write( "Question 908426: I am confused on \"Factor by Grouping\". The problem I am working on is this :
\n" ); document.write( "mn + 5n^2 - 4m - 20n Any help provided with the answer so I can have a correct example to go through the rest of my homework with would be outstanding, thank you !
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Algebra.Com's Answer #551021 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
\"+mn+%2B+5n%5E2++-+4m+-+20n+\"
\n" ); document.write( "change the grouping:
\n" ); document.write( "\"+%28+5n%5E2+-+20n+%29+%2B+%28+mn+-+4m+%29+\"
\n" ); document.write( "------------------------------
\n" ); document.write( "Factor \"+5n+\" out of the 1st group
\n" ); document.write( "\"+5n%2A%28+n+-+4+%29+%2B+%28+mn+-+4m+%29+\"
\n" ); document.write( "----------------------------
\n" ); document.write( "Factor \"+m+\" out of the 2nd group:
\n" ); document.write( "\"+5n%2A%28+n+-+4+%29+%2B+m%2A%28+n+-+4+%29+\"
\n" ); document.write( "----------------------------
\n" ); document.write( "Now \"+n+-+4+\" can be factored out
\n" ); document.write( "the 1st and 2nd terms
\n" ); document.write( "\"+%28+n+-+4+%29%2A%28+5n+%2B+m+%29+\"
\n" ); document.write( "This is as far as I can go with it\r
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