document.write( "Question 604724: I need help solving this math problem :\r
\n" );
document.write( "\n" );
document.write( "Find two integers whose product is 77 such that one of the integers is three less than twice the other integer. \n" );
document.write( "
Algebra.Com's Answer #381358 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Find two integers whose product is 77 such that one of the integers is three less than twice the other integer. \n" ); document.write( "------- \n" ); document.write( "Equations: \n" ); document.write( "xy = 77 \n" ); document.write( "x = 2y-3 \n" ); document.write( "-------------------- \n" ); document.write( "Substitute for \"x\" and solve for \"y\": \n" ); document.write( "(2y-3)y = 77 \n" ); document.write( "2y^2-3y = 77 \n" ); document.write( "2y^2-3y-77 = 0 \n" ); document.write( "2y^2 -14y+11y-77 = 0 \n" ); document.write( "------------------------------ \n" ); document.write( "2y(y-7)+11(y-7) = 0 \n" ); document.write( "(y-7)(2y+11) = 0 \n" ); document.write( "y = 7 or y = -11/2 \n" ); document.write( "--- \n" ); document.write( "Integer solution: \n" ); document.write( "y = 7 \n" ); document.write( "Therefore x = 11 \n" ); document.write( "=================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=================== \n" ); document.write( " \n" ); document.write( " |