Multiple Choice

A project estimator is reviewing a technical manual's solution for the equation 23u2+5=17\frac{2}{3}u^2 + 5 = 17. The manual shows that 18\sqrt{18} is rewritten as 9⋅2\sqrt{9} \cdot \sqrt{2} to facilitate simplification. Which mathematical property is specifically recalled to justify this step?

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Updated 2026-09-17

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