document.write( "Question 134968: We are having trouble factoring on this problem:
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document.write( "12y^2-24y-72
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document.write( "We took out the 12 and got 12(y^2-2y-6) We can't think of any factors of -6 that would give a -2. Is there a solution, or do you think it was typed incorrectly on the worksheet? Thank you!\r
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document.write( "PS. This didn't come from a textbook, but from a teacher-created worksheet. \n" );
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Algebra.Com's Answer #98825 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! We are having trouble factoring on this problem: \n" ); document.write( "12y^2-24y-72\r \n" ); document.write( "\n" ); document.write( "= 12(y^2-2y-6)\r \n" ); document.write( "\n" ); document.write( "Factoring y^2-2y-6 with the quadratic formula: \n" ); document.write( "y = [2 +- sqrt(4 -4*1*-6)]/2 \n" ); document.write( "y = [2 +- sqrt(28)]/2 \n" ); document.write( "y = [1 +- sqrt7] \n" ); document.write( "Factors are 12, (y-(1+sqrt7)), (y-(1-sqrt(7)) \n" ); document.write( "=========================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |