If the $x$-coordinates of the two $x$-intercepts of a parabola are $3 - \sqrt2$ and $5 + \sqrt2,$ then what is - The Beat The GMAT Forum

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If the $x$-coordinates of the two $x$-intercepts of a parabola are $3 - \sqrt2$ and $5 + \sqrt2,$ then what is

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

If the $x$-coordinates of the two $x$-intercepts of a parabola are $3 - \sqrt2$ and $5 + \sqrt2,$ then what is

by Vincen » Wed Nov 18, 2020 11:25 am

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If the $x$-coordinates of the two $x$-intercepts of a parabola are $3 - \sqrt2$ and $5 + \sqrt2,$ then what is the distance between them?

A. $2-2\sqrt2$
B. $2+2\sqrt2$
C. $8+2\sqrt2$
D. $2$
E. $8$

Answer: B

Source: Princeton Review

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