Question

Хелп плиз
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Answer 1

$\frac{(7\sqrt{14})^2}{7} = \frac{49 \cdot 14}{7} = 7 \cdot 14 = 98\\\frac{144}{(4\sqrt{12})^2} =\frac{144}{(8\sqrt{3})^2}=\frac{144}{64 \cdot 3} = \frac{48}{64} = \frac{3}{4}= 0,75$