document.write( "Question 1031429: Write a quadratic equation and solve\r
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document.write( "Find two integers such that the first is 2 more than twice the second and their product is 112. \n" );
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Algebra.Com's Answer #646111 by mananth(16946)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Find two integers such that the first is 2 more than twice the second and their product is 112.\r \n" ); document.write( "\n" ); document.write( "let second number be x \n" ); document.write( "first number => 2x+2\r \n" ); document.write( "\n" ); document.write( "x(2x+2) = 112\r \n" ); document.write( "\n" ); document.write( "3x^2+2x=112 \n" ); document.write( "/2 \n" ); document.write( "x^2+x=56\r \n" ); document.write( "\n" ); document.write( "x^2+x-56=0\r \n" ); document.write( "\n" ); document.write( "x^2+8x-7x-56=0\r \n" ); document.write( "\n" ); document.write( "x(x+8)-7(x+8)=0\r \n" ); document.write( "\n" ); document.write( "(x+8)(x-7)=0\r \n" ); document.write( "\n" ); document.write( "x=-8 OR x=7\r \n" ); document.write( "\n" ); document.write( "2x+2 when x=-8\r \n" ); document.write( "\n" ); document.write( "=-14\r \n" ); document.write( "\n" ); document.write( "(-8,-14)\r \n" ); document.write( "\n" ); document.write( "2x+2 when x=7\r \n" ); document.write( "\n" ); document.write( "=16\r \n" ); document.write( "\n" ); document.write( "(7,16) \n" ); document.write( " |