Question

Let a,b,c,d be positive rationals such that a + root b = c + root d, then either a = c and b = d or 'b' and 'd' are squares of rationals.

Answer 1

☆☆your answer is here☆☆

Answer 2

hay
dear user

Given a, b, c, and d are positive rational numbers such that a+_/b=c+_/d

suppose That a=c so,

$a + \sqrt{b} = c + \sqrt{d } \\ a + \sqrt{b} = a + \sqrt{d} \\ \sqrt{b } = \sqrt{d} \\ b = d$

I hope it's help you