document.write( "Question 339048: If x = 2 is one solution of x^2 + 8x - c = 0, then the other solution is…\r
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document.write( "(A)20 (B) 10 (C) - 2 (D) - 10 (E) - 20 \n" );
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Algebra.Com's Answer #243039 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! If x = 2 is one solution of x^2 + 8x - c = 0, then the other solution is… \n" ); document.write( "(A)20 (B) 10 (C) - 2 (D) - 10 (E) - 20 \n" ); document.write( "------------------ \n" ); document.write( "Use synthetic division: \n" ); document.write( "2)....1....8....-c \n" ); document.write( ".......1....10...|..-c+20\r \n" ); document.write( "\n" ); document.write( "Solve -c+20 = 0 \n" ); document.write( "c = 20 \n" ); document.write( "----- \n" ); document.write( "Now solve x^2+8x-20 = 0 \n" ); document.write( "Factor: \n" ); document.write( "(x+10)(x-2)=0 \n" ); document.write( "x = -10 or x = 2\r \n" ); document.write( "\n" ); document.write( "================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |