Question

x² 2x+2=0
ecuacion cuadrática ​

Answer 1

$x² 2x+2=0 \\ \\ x {}^{2} \times 2x {}^{1} \\ x {}^{2 + 1} \times 2 \\ x {}^{3} \times 2 \\ 2x {}^{3} \\ \\ 2x {}^{3} + 2 = 0 \\ 2x {}^{3} + 2 - 2 = 0 - 2 \\ 2x {}^{3} = - 2 \\ \\ 2x {}^{3} \div 2 = - 2 \div 2 \\ x {}^{3} = - 1 \\ \\ x = \sqrt[3]{ - 1} \\ \\ x = - 1$