Question

HELP PLEASE

1. (03.08)
Solve x2 + 2x + 9 = 0. (2 points)
Ο χ= -2412
X= -2+212
Ο Ο Ο Ο
χ= -14412
Ο χ= -14 21 2

Answer 1

Explanation:

if we are supposed to solve
`x^(2)` + 2x + 9 = 0 there here is the solution

using the quadratic formula

= (-2 ±
`\sqrt{2^(2)-4*9 }` )/2

= (-2 ±
`√(-32)`) / 2

= (-2 ± i
`√(16*2)`)/2

= (-2 ± i 4
`√(2)`)/2

= -1 ± i 2
`√(2)`

complex number land :)