Question

Спрости вираз: (√10-√3) до квадрату

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Answer 1

$\displaystyle \tt (\sqrt{10}-\sqrt{3})^2=(\sqrt{10})^2-2\cdot\sqrt{10}\cdot\sqrt{3}+(\sqrt{3})^2=10-2\sqrt{30}+3=13-2\sqrt{30}$