Cyeliikincyidn
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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

Sagot :

Answer:

Step-by-step explanation:

if we are supposed to solve [tex]x^{2}[/tex] + 2x + 9 = 0   there here is the solution

using the quadratic formula

= (-2 ± [tex]\sqrt{2^{2}-4*9 }[/tex] )/2

= (-2 ± [tex]\sqrt{-32}[/tex]) / 2

= (-2 ± i [tex]\sqrt{16*2}[/tex])/2

= (-2 ± i 4[tex]\sqrt{2}[/tex])/2

= -1 ± i 2[tex]\sqrt{2}[/tex]

complex number land   :)

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