0;\\ x^2-3=0.5^{-2};\\ x^2-3=2^2;\\ x^2-3=4;\\ x^2=4+3;\\ x^2=7;\\ x_1=-\sqrt{7};\\ x_2=\sqrt{7}" alt="log_{0.5} (x^2-3)=-2;\\ x^2-3>0;\\ x^2-3=0.5^{-2};\\ x^2-3=2^2;\\ x^2-3=4;\\ x^2=4+3;\\ x^2=7;\\ x_1=-\sqrt{7};\\ x_2=\sqrt{7}" align="absmiddle" class="latex-formula">