Find all real solutions of the equation $x^2 - 216 = 0$. $x_1 = \boxed{\phantom{123456789}}$ and $x_2 = \boxed{\phantom{123456789}}$ with $x_1 < x_2$ Give your answers to three decimal places or as exact expressions
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To find the real solutions, we need to isolate $x^2$ and then take the square root of both sides. $x^2 = 216$ Show more…
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