What is 5√28 + √63 in simplest radical form?

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03-05-2018
Mathematics

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What is 5√28 + √63 in simplest radical form?

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JonHenderson55 JonHenderson55 · Answer 1 · 2018-05-03T01:33:06+02:00

The answer is: " 13√7 " .
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Explanation:
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" √63 " = √9 √7 = " 3√7 " .
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" √28 " = √4 √7 = " 2√7 " .
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" 5√28 " = " 5 * 2 * √7 = " 10√7 " .
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→ " 5√28 " + " √63 " ;

= " 10√7 " + " 3√7 " ;

= " (10 + 3) * (√7) " ;

= " 13 √ 7 "
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The answer is: " 13√7 " .
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