Question

Solve the equation. 9x^2+4=0

Answer 1

x=2i/3

All you have to do is just to find the square root.

Answer 2

x = ±(2/3)i

Explanation:

Subtract 4, divide by 9, and take the square root.

9x^2 = -4

x^2 = -4/9

x = ±√(-4/9) = ±(2/3)i . . . . . . the solutions are imaginary numbers