Respuesta :
Answer:
x = ± [tex]\frac{8}{3}[/tex] i
Step-by-step explanation:
subtract 64 from both sides
9x² = - 64 ( divide both sides by 9 )
x² = - [tex]\frac{64}{9}[/tex] ( take the square root of both sides )
x = ± [tex]\sqrt{-64/9}[/tex] = ± [tex]\frac{8}{3}[/tex] i
Answer:
see below
Step-by-step explanation:
9x^2 + 64 = 0
9x^2 = -64
x^2 = -64 / 9
Taking square roots of both sides:-
x = +/- (-8/3)
x = -8i/3 , 8i/3
