Asked by Chantry

Rationalize the Denominator
(√a-√b)/(√a+√b)

I have literally no idea how to do this one. It's an online class so I have no teacher to ask at the moment and need help. Also i copy and pasted the square root symbols, just to let you know.
Answered by mara
Hey! multiply both the numerator and denominator by the conjugate. in this case it's square root a - square root b.
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