# Math

Simplify:

9 sqrt5 -3 sqrt5

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2. 👎 0
3. 👁 47
1. If you look carefully at the two terms of the sum, you can see that in each term there is a sqrt5. So, you can write the sum as:

sqrt(5)*(9-3) = 6*sqrt(5)

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2. 👎 0

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