Maths Olympiad Prep

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, 2017

Algebra Difficulty 1.0 Junior Find the answer Canada

The value of (2+4+6)(1+3+5)(2+4+6) - (1+3+5) is

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Solution

Evaluating, (2+4+6)(1+3+5)=129=3(2+4+6) - (1+3+5)=12-9=3.

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Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project.