document.write( "Question 1145843: Rosa is 8 years younger than dale. if the product of their ages is 105,how old is each person \n" ); document.write( "
Algebra.Com's Answer #767127 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Tutor @MathTherapy is exactly right about how to solve this... although one number he shows in his explanation is a typo. \n" ); document.write( "If you try to solve this problem using formal algebra, you end up with a quadratic equation; to solve that equation by factoring, you need to find two numbers whose product is 105 and whose difference is 8. \n" ); document.write( "But that's what the original problem requires you to do! \n" ); document.write( "So there is no point in using formal algebra -- unless this is an assignment where an algebraic solution is required. \n" ); document.write( "Pairs of (whole) numbers whose product is 105: \n" ); document.write( "105*1 \n" ); document.write( "35*3 \n" ); document.write( "21*5 \n" ); document.write( "15*7 \n" ); document.write( "Find the one for which the difference is 8.... \n" ); document.write( " |