document.write( "Question 1051040: How do write a system of equations when the word problem says a product. Here is the word problem.
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document.write( "The difference of two numbers is 8; the product is 65. Find the two numbers. \n" );
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Algebra.Com's Answer #666629 by jayreal(3)![]() ![]() ![]() You can put this solution on YOUR website! x - y = 8 \n" ); document.write( "x = (y+8) \n" ); document.write( ": \n" ); document.write( "the product is 65. \n" ); document.write( "x*y = 65 \n" ); document.write( "replace x with (y+8) \n" ); document.write( "y(y+8) = 65 \n" ); document.write( ": \n" ); document.write( "y^2 + 8x - 65 = 0 \n" ); document.write( "Factor \n" ); document.write( "(y+13)(y-5) = 65 \n" ); document.write( "Two solutions \n" ); document.write( "y = -13; then x = -13 + 8 = -5 \n" ); document.write( "y = +5; then x = 5 + 8 = +13 \n" ); document.write( " |