Question

Solve the equation: 9x^2+64=0. Please show work.

Answer 1

Explanation:

`9x^2` + 64 = 0

<=> x = ( -b ±
`\sqrt{b^(2) - 4ac }`) / 2a

<=> x =
`( 0^2 ± \sqrt{0^(2) - 4.9.64 }`) / 2.9

<=> x = ±(8/3)i