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Earn +20 ptsQ: Square root of 5 plus square root of 45?
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What is 2 square root of 20 - square root of 20 plus 3 square root of 20 - 2 square root 45?
It is 2*sqrt(5).
Is the square of negative 54 rational'?
No, nor is it a real number. The square root of minus 54 is equal to the square root of plus 45, times i.
Is it possible to add a radical if there different under the square roots?
You can always add radicals, but you can't simplify unless the radicands have a common factor. For example, the square root of 20 plus the square root of 45 equals 2 times the square root of 5 plus 3 times the square root of 5, which is 5 times the square root of 5.
Factoring out square root of 45?
3 times the square root of 5
What is the Square root of 45 square meters?
About 6.71 meters.
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