- #1
ParisSpart
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Homework Statement
Let x = third root of [root (108) + 10] - trird root of [root (108) - 10]. Show that x ^ 3 +6 x-20 = 0 from which to infer the value of x (is a small natural)
The Attempt at a Solution
may can i have some ideas how to find this? i tryed to find the x but i don't know how with the roots..