Short Answer

Applying Mathematical Properties in Machining Calculations

A machining apprentice is calculating the critical dimensions of a mechanical part modeled by the equation 169x2=49{}169x^2 = 49. After rewriting the equation in standard form as 169x2−49=0{}169x^2 - 49 = 0 and factoring it into (13x−7)(13x+7)=0(13x - 7)(13x + 7) = 0, they need to solve for xx. State the specific mathematical property that allows the apprentice to set each individual factor, 13x−7{}13x - 7 and 13x+7{}13x + 7, equal to zero.

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Updated 2026-09-19

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