document.write( "Question 240581: The problem is: (x+5)/3 + 4/x = 5/6 My instructions are to use the quadratic formula to solve. I think I am supposed to multiply by the common denominator, but I am not sure. \n" ); document.write( "
Algebra.Com's Answer #176319 by jsmallt9(3758)![]() ![]() ![]() You can put this solution on YOUR website! You are correct. Probably the easiest way to proceed is to multiply both sides of the equation by the Lowest Common Denominator (LCD) of all the denominators. The LCD of 3, x and 6 is 6x so we'll multiply both sides by 6x: \n" ); document.write( " \n" ); document.write( "On the left side we use the Distributive Property to multiply: \n" ); document.write( " \n" ); document.write( "The denominator of each fraction cancels with some part of 6x leaving: \n" ); document.write( " \n" ); document.write( "Simplifying this we get: \n" ); document.write( " \n" ); document.write( "Since this is a quadratic equation we will solve it by \n" ); document.write( "1) Get one side equal to zero \n" ); document.write( "Subtracting 5x from each side we get: \n" ); document.write( " \n" ); document.write( "2) Either factor or use the quadratic formula. We can factor out a 2: \n" ); document.write( " \n" ); document.write( "As a sum of squares, there is no way to factor the 2nd factor any further. The only solutions to this equation then are the x's that make \n" ); document.write( "So your equation has no Real solutions. (If you are supposed to find Complex solutions, just use simplify \n" ); document.write( " \n" ); document.write( " |