Respuesta :
The solutions are (2/3) and (-2/3)
Divide both sides by 9 so that you have
x2 = 4/9
Take the square root of both sides, which makes it so that x is positive and negative (2/3)
Divide both sides by 9 so that you have
x2 = 4/9
Take the square root of both sides, which makes it so that x is positive and negative (2/3)