Germany| Can you Solve this| Math Olympiad Algebra Problem

[@oscaramorim7234]

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[@dennismathacademy]

Thank you.

[@wes9627]

Use Euler's equation, x_j=2*cos(jπ/2)+2*i*sin(jπ/2)-3, j=0,1,2,3, to obtain four roots, where i=√(-1)

[@dennismathacademy]

👍

[@stefanereimer7714]

Simpler solution:
Sqr root both side gives
(x+3)^2=+/-2^2
Sqr root again gives
(x+3)= +/-2 or +/-2i
x = -1 or -5 or -3+2i or -3-2i 🤷🏻

[@dennismathacademy]

👍