Basically numbers under zero do not have a square root on the real numbers but on the complex numbers you can find one using the fact that ##i^2=-1##.
Depending on your level of studies you might not know it yet.
A solution would be using
##i^2=-1##
##300i^2=-300##
##sqrt(300i^2) = sqrt(-300)## this line is totally incorrect it is not allowed to write ##sqrt()## of a negative number in the real numbers
##isqrt(100*3)=sqrt(-300)##
##10isqrt(3)=sqrt(-300)##
so ##10isqrt(3)## would be your answer
How do you find the square root of -300?
March 18th, 2019 admin