Evaluate
6\sqrt{6}x_{4}
Differentiate w.r.t. x_4
6 \sqrt{6} = 14.696938457
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x_{4}\times 6\sqrt{6}
Factor 216=6^{2}\times 6. Rewrite the square root of the product \sqrt{6^{2}\times 6} as the product of square roots \sqrt{6^{2}}\sqrt{6}. Take the square root of 6^{2}.
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