4X10= 40
take the square root of 2 and makes exactly a 2, and just leave the square root of 10 with radical sign
so the answer is 2i square root of 10
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7 x 2½
The square root of negative 18 is an imaginary number.The square root of positive 18 is [ 3 sqrt(2) ].If the 18 is negative, then scientists and engineers indicate its square root as 3i sqrt(2) . The little ' i ' indicates the square root of negative one.
2i radical 5 * * * * * No. it is ± i*radical(25) which is ± 5i. Not sure why the answer is requireed in radical form.
Negative square root is -√Square root of negative one is i.
square root of 85 is 9.2195444 but the in the simplest radical is square root of 5 times square root of 17