Solve the equation

Question

Solve the equation

81x2+4=0

81x²+4=0

Answer 1

81x²+4=0

 

What have you been taught that might apply to this equation?

 

For example, can you obtain an expression for x squared??

 

Then, if you know about the imaginary number i (where i squared = -1)...do you think that you could take the square root of x squared to get two imaginary numbers as the roots of this equation?

 

Come on, seize the day!