document.write( "Question 289878: Factor 12x^2-16x-60
\n" ); document.write( "I got to this point- 4(3x^2-4x-15)
\n" ); document.write( "The teacher wants us to now take it a form of 4( )( ) and i am not sure what to do next.
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Algebra.Com's Answer #209869 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
3*(-15)=-45
\n" ); document.write( "we want factors of -45 which add up to -4
\n" ); document.write( "5 -9
\n" ); document.write( "3x^2-4x-15
\n" ); document.write( "we are un FOILing
\n" ); document.write( "factor by groups
\n" ); document.write( "3x^2+5x-9x-15
\n" ); document.write( "x*(3x+5)-3*(3x+5)
\n" ); document.write( "(3x+5)*(x-3))
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