- 13 13, \quad - 15 15, \quad- 13 13, \quad - 15 15,\quad...

Free Practice Question

PS · Problem Solving

705-805

Roots

-\frac{\sqrt{\frac{1}{3}}}{\frac{1}{3}}, \quad -\frac{\frac{1}{5}}{\sqrt{\frac{1}{5}}}, \quad-\frac{\frac{1}{3}}{\sqrt{\frac{1}{3}}}, \quad -\frac{\sqrt{\frac{1}{5}}}{\frac{1}{5}},\quad -1

If the 5 numbers listed above are denoted

x_1, x_2, x_3, x_4,

and

x_5

, so that

x_1 < x_2 < x_3 < x_4 < x_5,

what is the value of

x_4

?

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