\(a=x+y\) and \(b=x-y.\) If \(a^2=b^2,\) what is the value of \(y?\)

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VJesus12: Legendary Member; Posts: 2276; Joined: Sat Oct 14, 2017 6:10 am; Followed by:3 members

\(a=x+y\) and \(b=x-y.\) If \(a^2=b^2,\) what is the value of \(y?\)

by VJesus12 » Sat Jun 26, 2021 5:11 am

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\(a=x+y\) and \(b=x-y.\) If \(a^2=b^2,\) what is the value of \(y?\)

(1) \(\sqrt{x}+\sqrt{y}>0\)

(2) \(\sqrt{x}-\sqrt{y}>0\)

Answer: B

Source: Manhattan GMAT

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Source: Beat The GMAT — Data Sufficiency | Sat Jun 26, 2021 5:11 am

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