document.write( "Question 392639: please help me solve this equation
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document.write( "The difference between the squares of two odd numbers is 48. What are the numbers? i have been given a tip which is if the larger of the two numbers is x, then the smaller number is x-2. Form an equation and solve?
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document.write( "Please would you help me solve and show me how to work it out please? \n" );
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Algebra.Com's Answer #278681 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The difference between the squares of two odd numbers is 48. \n" ); document.write( "1st odd: 2x-1 \n" ); document.write( "2nd odd: 2x+1 \n" ); document.write( "------- \n" ); document.write( "What are the numbers? \n" ); document.write( "--- \n" ); document.write( "Form an equation and solve? \n" ); document.write( "(2x-1)^2 - (2x+1)^2 = 48 \n" ); document.write( "4x^2-4x+1-[4x^2+4x+1] = 48 \n" ); document.write( "---- \n" ); document.write( "-8x = 48 \n" ); document.write( "x = -6 \n" ); document.write( "--- \n" ); document.write( "1st: 2x-1 = -13 \n" ); document.write( "2nd 2x+1 = -11 \n" ); document.write( "---- \n" ); document.write( "Check: \n" ); document.write( "(-13)^2-(-11)^2 = 48 \n" ); document.write( "169 - 121 = 48 \n" ); document.write( "48 = 48 \n" ); document.write( "----- \n" ); document.write( "Note: You could also use the equation (2x+1)^2-(2x-1)^2 = 48 \n" ); document.write( "----- \n" ); document.write( "By the way, x and x-2 do not represent 2 odd numbers. Odd \n" ); document.write( "numbers are always one less than or one greater than an \n" ); document.write( "even number. \n" ); document.write( "Use 2x-1 and 2x+1 to represent 2 consecutive odd numbers. \n" ); document.write( "================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |