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%���ӁD�𓚂͂��ׂĉ𓚗p���ɋL�����Ȃ����B

\begin{enumerate}
\item ����$2$���������������Ȃ����B

\begin{enumerate}
\item $x^2+7x+2=0$

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\item $(x-3)^2=-x+15$

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\item $\dfrac{\>x^2\>}{5}+\dfrac{x}{\>10\>}=1$

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\newpage

\item �A������$2$�̐���������܂��B���ꂼ���$2$�悵�����̘a��$85$�ɂȂ�Ƃ��C
����$2$�̐�������������g���ċ��߂Ȃ����B

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�@ \\
%���������̐�����$x$�Ƃ���Ƒ傫�����̐�����$x+1$�ŕ\�����B \\

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$\mathstrut$ \\
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$\mathstrut$ \\
$\mathstrut$ \\
$\mathstrut$ \\
$\mathstrut$ \\
%$x^2+(x+1)$ & $\>=\>$ & $85$ \\
$\mathstrut$ \\
%$2x^2+2x-84$ & $=$ & $0$ \\
$\mathstrut$ \\
%$x^2+x-42$ & $=$ & $0$ \\
$\mathstrut$ \\
$\mathstrut$ \\
%$(x-6)(x+7)$ & $=$ & $0$ \\
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$\mathstrut$ \\
$\mathstrut$ \\
$\mathstrut$ \\
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\hline
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\item �c$18$\ajLig{m}�C��$30$\ajLig{m}�̒����`�̓y�n�ɁC���̐}�̂悤�ɓ������̉Ԃ��������C
�c����Ő��ɂ��܂��B�Ő��̖ʐς����Ƃ̓y�n�̖ʐς�$\dfrac{2}{\>3\>}$�ɂ���ɂ́C
�Ԃ���̕�����\ajLig{m}�ɂ���΂悢�ł����B���������g���ċ��߂Ȃ����B

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�@ \\
%�Ԃ���̕���$x$\ajLig{m}�Ƃ���� \\

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\end{enumerate}

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