SOLUTION: For the given rational function "f", find all values of "x" for which f(x) has the indicated value: f(x)=5x+21/x; f(x)= -38

Question 429867: For the given rational function "f", find all values of "x" for which f(x) has the indicated value:
f(x)=5x+21/x; f(x)= -38
Answer by Gogonati(855) (Show Source): You can put this solution on YOUR website!
Solution:Solve the equation:, assuming that x, no zero.
, multiplied both sides by x.
, write the equation in standard form
, divide both sides by 43

Answer:For x=-21/43 the value of f(x)=-38.
Check:
Done.
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