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(7 - 2√5)(11 + √5) = (7 × 11 + 7 × √5) + (-2√5 × 11 + -2√5 × √5)

= 77 + 7√5 - 22√5 - 2 × 5

= 67 - 15√5

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6y ago
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6y ago

It is 67 - 15*sqrt(5).

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Q: What is the simplified radical form of (7-2 and radic5)(11 plus and radic5)?
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