\[\boxed{\mathbf{701\ (701).\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ 53 - 24 - 1 = 28\ (страниц)\]
\[- номера,\ которых\ не\ хватает.\]
\[2)\ 28\ :2 = 14\ листов\ \]
\[не\ хватает.\]
\[Ответ:14\ листов.\]
\[\boxed{\mathbf{701.\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ (x - 4)^{2} = 4x - 11\]
\[x^{2} - 8x + 16 - 4x + 11 = 0\]
\[x^{2} - 12x + 27 = 0\]
\[D = 144 - 4 \cdot 27 = 144 - 108 =\]
\[= 36\]
\[x = \frac{12 \pm \sqrt{36}}{2} = \frac{12 \pm 6}{2}\]
\[x_{1} = 9,\ \ x_{2} = 3\]
\[Ответ:x = 3;x = 9.\]
\[2)\ (x + 5)^{2} + (x - 7)(x + 7) =\]
\[= 6x - 19\]
\[2x^{2} + 4x - 5 = 0\]
\[D = 16 + 40 = 56\]
\[x = \frac{- 4 \pm \sqrt{56}}{4} = \frac{- 4 \pm 2\sqrt{14}}{4} =\]
\[= \frac{- 2 \pm \sqrt{14}}{2}\]
\[Ответ:x = \frac{- 2 \pm \sqrt{14}}{2}\text{.\ }\]