Răspuns :
[tex] (x+2)^{2}=4(x+3)=\ \textgreater \ x^{2} +4x+4=4x+12/-4x ---\ \textgreater \
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[tex] x^{2} +4=12/-4=\ \textgreater \ x^{2} =8=\ \textgreater \ x= 2\sqrt{2} [/tex]
[tex] x^{2} +4=12/-4=\ \textgreater \ x^{2} =8=\ \textgreater \ x= 2\sqrt{2} [/tex]
[tex](x+2)^2=4(x+3) \\ x^2+4x+4=4x+12 \\ x^2-8=0 \\ (x+2\sqrt{2})(x-2\sqrt{2})=0 \\ x_1=2 \sqrt{2} \\ x_2=-2 \sqrt{2} [/tex]