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Q: Is the square root of 84 a rational number?

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No. The square root of 84 is an irrational number

√84 is irrational.

The square roots of 84 are irrational.

irrational

If you mean 84 squared then it is 84*84 = 7056 If you mean the square root of 84 then it is 2 times the square root of 21 which is an irrational number

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

84 is not the square of an integer, its square root, rounded to five decimal places, is ±9.16515.

It is: 2 times the square root of 21 and it's an irrational number

The square root of 84 is irrational and is approx 9.1652.

The square root of 7056 is 84.

first find the factors of 84 if there is a perfect square (4,9,16,25, etc.) multiplied by another number to get 84, then use thatso 84 has 4 and 21, so take the square root of 4 which is and put it outside of the root sign and put 21 in it

Press 2ND and then the square root sign (above x2). Then type the number you want to find the square root of. Press ENTER to see the answer.

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