Question

Evaluate
$\sqrt{13 + 4 \sqrt{10} } - \sqrt{7 - 2 \sqrt{10} }$
​

Answer 1

Answer:

$4.24$

Step-by-step explanation:

$\sqrt{13 + 4 \sqrt{10} } - \sqrt{7 - 2 \sqrt{10} }$

$\sqrt{13 + 4(3.16) } - \sqrt{7 - 2 (3.16) }$

$\sqrt{13 + 12.65} - \sqrt{7 - 6.32}$

$\sqrt{25.65} - \sqrt{0.68}$

$5.06 - 0.82$

$4.24$

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