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Algebra Difficulty 1.0 Junior Find the answer Canada

The value of the expression $5^2 - 4^2 + 3^2$ is

(A) $20$ (B) $18$ (C) $21$ (D) $10$ (E) $16$

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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. Solutions are the publisher's, linked not copied.