If x = 3 -23 + 2, y = 3 + 23 - 2, what is x3 + y3 + 14xyx + y?

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Max@Math Revolution: Elite Legendary Member; Posts: 3991; Joined: Fri Jul 24, 2015 2:28 amFollowed by: 37 members; Location: Las Vegas, USA; Thanked: 19 times

by Max@Math Revolution » Wed May 20, 2020 3:01 am

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[GMAT math practice question]

If x = $\sqrt{3}$ -2/ $\sqrt{3}$ + 2, y = $\sqrt{3}$ + 2/ $\sqrt{3}$ - 2, what is x^3 + y^3 + 14xy/x + y?

A. 172
B. 192
C. 201
D. 213
E. 225

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Source: Beat The GMAT — Problem Solving | Wed May 20, 2020 3:01 am

Max@Math Revolution: Elite Legendary Member; Posts: 3991; Joined: Fri Jul 24, 2015 2:28 amFollowed by: 37 members; Location: Las Vegas, USA; Thanked: 19 times

Re: If x = 3 -23 + 2, y = 3 + 23 - 2, what is x3 + y3 + 14xyx + y?

by Max@Math Revolution » Fri May 22, 2020 5:24 am

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