SOLUTION: f(x)= 7/x + 7/x+4 such that f(x)= 1 So I set up the problem like this 1= 7/x + 7/x+4 and I get stuck. I'm supposed to solve using the quadratic formula. Help!

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Question 980157: f(x)= 7/x + 7/x+4 such that f(x)= 1
So I set up the problem like this 1= 7/x + 7/x+4 and I get stuck. I'm supposed to solve using the quadratic formula. Help!
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39620)   (Show Source): You can put this solution on YOUR website!
Skills with fractions already studied (and learned through Algebra 1 study). Lowest or simplest common denominator is x.











This function and equation will not use steps with any quadratic equation.
Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

f(x)= 7/x + 7/x+4 such that f(x)= 1
So I set up the problem like this 1= 7/x + 7/x+4 and I get stuck. I'm supposed to solve using the quadratic formula. Help! 
 <-------- Good job up to here

 --------- Multiplying by LCD: x(x + 4) 









Solve the above trinomial for x, using the quadratic equation formula. 

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