Answer:
x=2i/3
All you have to do is just to find the square root.
x = ±(2/3)i
Step-by-step 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
