Question

simplify: (root5 - 2)^2

Answer 1

Answer:

$( \sqrt{5} - 2) {}^{2} \\ ( \sqrt{5} ) {}^{2} + (2) {}^{2} - 2 \times \sqrt{5} \times \sqrt{2} \\ 5 + 4 + 2 \sqrt{10} \\ 9 + 2 \sqrt{10} \\ 11 \sqrt{10}$

Step-by-step explanation:

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