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Quadratic Equation Help
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Hi, Iām doing a course and I have spent a lot of time trying to work out how they progressed the equation to be suitable to apply the quadratic formula.
The equation:
(1/D) (1/r) - (1/(D-r)) = 0
Answer:
Solving for (r/D) yields: (r/D) = (-1Ā± ā5)/2
Obviously, they have applied the quadratic formula but how did they get the equation into the below format to apply the formula?
(r/D)^2 (r/D) - 1 = 0
Iām sure the answer is simple and Iām clearing overlooking something. Please help!
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