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# XY root ratios question

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Intern
Joined: 15 Oct 2017
Posts: 28
Schools: Northeastern '20

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31 Dec 2017, 06:52
Hello everyone,

I don't understand the process between the 1st and the 2nd equation

thank you
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examPAL Representative
Joined: 07 Dec 2017
Posts: 500
Re: XY root ratios question [#permalink]

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31 Dec 2017, 07:24
thegame12 wrote:
Hello everyone,

I don't understand the process between the 1st and the 2nd equation

thank you

Take a look at the numerator and denominator of both sides of the equation - notice anything in common?

They canceled out $$\sqrt{x} + \sqrt{y}$$ from both sides

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Intern
Joined: 15 Oct 2017
Posts: 28
Schools: Northeastern '20
Re: XY root ratios question [#permalink]

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31 Dec 2017, 07:30
Ho I get it now, thanks
Re: XY root ratios question   [#permalink] 31 Dec 2017, 07:30
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