Question

PLEASE HURRY

9x^2 + 64 = 0

I NEED THE WORK SHOWN IN ORDER TO GET CREDIT

Answer 1

see below

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

Answer 2

x = ±
`(8)/(3)` i

Explanation:

subtract 64 from both sides

9x² = - 64 ( divide both sides by 9 )

x² = -
`(64)/(9)` ( take the square root of both sides )

x = ±
`√(-64/9)` = ±
`(8)/(3)` i