Ответ: x=2.
Объяснение:
ОДЗ: х+2≠0 х≠-2.
0\\x-2=0\\x=2." alt="\frac{x^{4} -4x^{2}+3x^{2} -12 }{x+2} =0\\\frac{x^{2}*(x^{2}-4)+3*(x^{2}-4 )\frac{x}{y} }{x+2}=0\\\frac{(x^{2}-4)*(x^{2}+3) }{y+x+2} =0\\\frac{(x+2)*(x-2)*(x^{2}+3) }{x+2} =0\\ (x-2)*(x^{2} +3)=0\\x^{2} +3>0\\x-2=0\\x=2." align="absmiddle" class="latex-formula">