Question 390479
{{{2squareroot(-1)=4a}}}

Since a is on the right-hand side of the equation, switch the sides so it is on the left-hand side of the equation.
4a=2~(-1)

Pull all perfect square roots out from under the radical.  In this case, remove the i because it is a perfect square.
4a=(2*i)

Multiply 2 by i to get 2i.
4a=(2i)

Remove the parentheses around the expression 2i.
4a=2i

Divide each term in the equation by 4.
(4a)/(4)=(2i)/(4)

Simplify the left-hand side of the equation by canceling the common factors.
a=(2i)/(4)

Simplify the right-hand side of the equation by simplifying each term.
a=(i)/(2)