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First note that 84=4x21 and 4 is a perfect square.
So square root of (84)=square root (4x21)=Square root (4) Square root (21)=
2 multiplied by the square root of 21.
You can also write this using rational exponents, but this is not in radical form.
It is an equivalent expression, however.
2 x (21)1/2
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Earn +20 ptsQ: What is the simplest radical from of the square root of 84?
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Continue Learning about Algebra
What is the square root of 7056?
The square root of 7056 is 84.
Square root of 7056?
84
What is the square root of 84?
- 9.165151 or + 9.165151
What is the square root of 84 simplify?
It is: 2 times the square root of 21 and it's an irrational number
Is the square root of 84 rational or irrational?
irrational
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