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1 vote
I need whats in the red rectangle

I need whats in the red rectangle-example-1

1 Answer

2 votes

Answer:

9

Explanation:

sqrt(5) + sqrt(405)

sqrt(5) + sqrt( 81*5)

sqrt(5) + sqrt(81) sqrt(5)

sqrt(5) +9 sqrt(5)

10 sqrt(5)

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User Coenwulf
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