Answer:
[tex]\frac{-1+135i}{2}[/tex], [tex]\frac{-1-135i}{2}[/tex]
Step-by-step explanation:
you use the quadratic equation: (-b ± [tex]\sqrt{b2 - 4ac}[/tex]) ÷ 2a
in this case, a = 5, b = 5, c = 8
inside the radical will be -135, hence using 135i where 'i' equals -1