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Úprava matematického výrazu
Uprav:
\large \left( {\sqrt x- \Large \frac{1}{{\sqrt x }}\large } \right) \cdot \left( {\Large \frac{{\sqrt x+1}}{{\sqrt x-1}}\large + 4\sqrt x - \Large \frac{{\sqrt x-1}}{{\sqrt x+1}}\large } \right)
\large = 4 \sqrt{x}
\large = 4
\large = 4 x
\large = 4 x^2