document.write( "Question 291699: Factor: 2p^2-9p+10. Please explain. \n" ); document.write( "
Algebra.Com's Answer #210881 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Look for a solution that looks like,
\n" ); document.write( "\"%282p-a%29%28p-b%29=2p%5E2-9p%2B10\"
\n" ); document.write( "If we work out the left hand side using FOIL,
\n" ); document.write( "\"2p%5E2-2bp-ap%2Bab=2p%5E2-9p%2B10\"
\n" ); document.write( "\"2p%5E2-%282b%2Ba%29p%2Bab=2p%5E2-9p%2B10\"
\n" ); document.write( "Compare coefficients of \"p%5E2\", \"p\" and the constant.
\n" ); document.write( "\"2p%5E2=2p%5E2\" No information.
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\n" ); document.write( ".
\n" ); document.write( "\"-%282b%2Ba%29p=-9p\"
\n" ); document.write( "\"2b%2Ba=9\"
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\n" ); document.write( "\"ab=10\"
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\n" ); document.write( "Now look for possible values of a and b that solve both equations.
\n" ); document.write( "a=10, b=1
\n" ); document.write( "a=5, b=2
\n" ); document.write( "a=2, b=5
\n" ); document.write( "a=1, b=10
\n" ); document.write( "Try those until one works.
\n" ); document.write( "All of them solve
\n" ); document.write( "\"ab=10\"
\n" ); document.write( "Now solve
\n" ); document.write( "\"2b%2Ba=9\"
\n" ); document.write( "Obviously a or b cannot equal 10 since the left hand side would be greater than the right hand side.
\n" ); document.write( "If we let b=2 and a=5 then
\n" ); document.write( "\"2%282%29%2B5=4%2B5=9\"
\n" ); document.write( "That's the pair.
\n" ); document.write( "\"%282p-a%29%28p-b%29=2p%5E2-9p%2B10\"
\n" ); document.write( "\"%282p-5%29%28p-2%29=2p%5E2-9p%2B10\"
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