document.write( "Question 110211: Can someone help me solve this. I have to factor trinomials using the AC method.
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document.write( "20x^2-20x-15 \n" );
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Algebra.Com's Answer #80339 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! 5 is common to all the terms ...5(4x^2-4x-3)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "AC means take the factors of the product of a and c, and try to add them to get b\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "4(-3)=-12 ... factors are 1, 2, 3, 4, 6, 12 ... 2 and -6 add to -4\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(4x+2)(4x-6) ... reduce coefficients by common factors (2 in this case) ...(2x+1)(2x-3)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "5(2x+1)(2x-3) \n" ); document.write( " |