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Simplify: √(√21 -2√7)^2

Simplify: √(√21 -2√7)^2
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Simplify: √(√21 -2√7)^2

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User Cbalawat
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6.9k points

1 Answer

3 votes

Explanation:

√(√21 -2√7)^2

(√21 -2√7)

√7 ×3 -2√7

3√7- 2√7

√7

answered
User Gmagno
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7.8k points
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