document.write( "Question 102425: factor: (2x+5)^2-(2x+5)-12\r
\n" ); document.write( "\n" ); document.write( "I used the substitution method:
\n" ); document.write( "let u=2x+5\r
\n" ); document.write( "\n" ); document.write( "u^2-u-12
\n" ); document.write( "(u-4)(u+3)
\n" ); document.write( "{(2x+5)-4}{2x+5)+3}
\n" ); document.write( "(2x+5-4)(2x+5+3)
\n" ); document.write( "(2x+1)(2x+8)
\n" ); document.write( "2(2x+1)(x+4)\r
\n" ); document.write( "\n" ); document.write( "Is this correct? \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #74410 by edjones(8007) $\"\"$ $\"About$

You can put this solution on YOUR website!
yes
\n" ); document.write( "Very good!
\n" ); document.write( "Ed \n" ); document.write( "

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