you have
2x√11/(√11+3)
multiply by √11-3 up and down:
2x√11(√11-3)/(√11+3)(√11-3)
(2x*11 - 6x√11)/(11 - 9)
(22x - 6x√11)/2
11x - 3√11 x
Rationalize the denominator and simplify...
radical 44x^2/radical 11 +3
Help would be appreciated :)
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