document.write( "Question 110336: Please help me solve this problem. factor completely: solve: x^2-3x-40=0 \n" ); document.write( "
Algebra.Com's Answer #80415 by josmiceli(19441)![]() ![]() You can put this solution on YOUR website! Ask yourself what factors of 40 have a difference of 3 \n" ); document.write( "1 x 40 = 40 (40 - 1 = 39) \n" ); document.write( "2 x 20 = 40 (20 - 2 = 18) \n" ); document.write( "4 x 10 = 40 (10 - 4 = 6) \n" ); document.write( "5 x 8 = 40 (8 - 5 = 3) this is the one \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Note that I make the 8 negative so the 3 comes out negative \n" ); document.write( " |