[tex]\displaystyle\bf\\\frac{x^{2} }{4x-8} +\frac{4}{8-4x} =\frac{x^{2} }{4x-8} -\frac{4}{4x-8} =\frac{x^{2} -4}{4x-8} =\\\\\\=\frac{(x-2)\cdot(x+2)}{4\cdot(x-2)} =\frac{x+2}{4} \\\\\\x=14\\\\\\\frac{x+2}{4} =\frac{14+4}{4} =\frac{18}{4} =4,5\\\\\\Otvet \ : \ 4,5[/tex]
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[tex]\displaystyle\bf\\\frac{x^{2} }{4x-8} +\frac{4}{8-4x} =\frac{x^{2} }{4x-8} -\frac{4}{4x-8} =\frac{x^{2} -4}{4x-8} =\\\\\\=\frac{(x-2)\cdot(x+2)}{4\cdot(x-2)} =\frac{x+2}{4} \\\\\\x=14\\\\\\\frac{x+2}{4} =\frac{14+4}{4} =\frac{18}{4} =4,5\\\\\\Otvet \ : \ 4,5[/tex]