Q: What multiplied by 84 gives a perfect square?

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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

7 multiplied by 12 (7 x 12) = 84

762 multiplied by 84 is 64,008.

76 multiplied by 84 is 6,384.

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that sounds like someone's using answers.com instead of doing homework.

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

No. The sq root of 84 is 9.16555515139. 81 is a perfect square, where the sq root is 9.

The conjugate of (84-3i) is (84+3i). This gives you a real number when multiplied.

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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How about: 5*84 = 420 as one example

There are infinitely many pairs. Two pairs, for example, are (1, 84) and (10, 8.4).

7 multiplied by 12 (7 x 12) = 84

84 x 84 = 7056

There are many equations that equal 84. 14 multiplied by 6 is equal to 84. 7 multiplied by 12 is also equal to 84.

7 multiplied by 2 multiplied by 6=84