How do I solve for R in this equation?

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SUMMARY

The discussion focuses on solving the inequality R - √(R² - X²) ≤ B - √(B² - (BX/A)²) for R. The initial approach suggested is to isolate R by moving it to the other side of the equation before squaring both sides. Participants emphasize the importance of carefully defining the domain of solutions to ensure accuracy in the results. This method is crucial for tackling similar algebraic inequalities effectively.

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Homework Statement



This is not homework; I'm working on a problem of my own...


I can't seem to remember how to solve equations like this (I'm trying to solve for R):

R - \sqrt{R^2 - X^2} \le B - \sqrt{B^2 - \left( \frac{BX}{A} \right) ^2}

Homework Equations



My initial thought was to square both sides, but I don't see how that would help.

The Attempt at a Solution



I don't really know where to start.
 
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You need to get rid of the square root expression containing R^2.
Move your single R over to the other side, and THEN square both sides.

You'll need to be careful when specifying the domain of solutions.
 
Yeah, thanks. I just drew a blank for some reason!
 

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