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19 June, 20:34

Radical 28 + radical 63

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  1. 19 June, 21:12
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    √28 = √4 * √7 = 2√7

    √63 = √9 * √7 = 3√√7

    Therefore √28 + √63 = 2√7 + 3√7 = 5√7
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