If \((x + y)^2 = 16\) and \(x^2 - y^2 = 16,\) what is the value of \(2x^2?\) - The Beat The GMAT Forum

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If \((x + y)^2 = 16\) and \(x^2 - y^2 = 16,\) what is the value of \(2x^2?\)

Vincen: Legendary Member; Posts: 2898; Joined: Thu Sep 07, 2017 2:49 pm; Thanked: 6 times; Followed by:5 members

by Vincen » Thu Jan 27, 2022 12:50 pm

00:00

If \((x + y)^2 = 16\) and \(x^2 - y^2 = 16,\) what is the value of \(2x^2?\)

(A) 8
(B) 16
(C) 18
(D) 32
(E) 50

Answer: D

Source: Manhattan GMAT

Source: Beat The GMAT — Problem Solving | Thu Jan 27, 2022 12:50 pm

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