alio1234567
alio1234567
07-06-2018
Mathematics
contestada
Solve by square rooting
X^2+4=0
Respuesta :
jdoe0001
jdoe0001
07-06-2018
[tex]\bf x^2+4=0\implies x^2=-4\implies x^2=-2^2\implies\sqrt{x^2}=\sqrt{-2^2} \\\\\\ x=\sqrt{2^2\cdot -1}\implies x=\sqrt{2^2}\cdot \sqrt{-1}\implies x=2i[/tex]
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