Question

2(√10-2√5)(√10-2√5)
Please solve it quickly ​

Answer 1

Answer:

(5+2)2

= ( \sqrt{5} ) {}^{2} + ( \sqrt{2} ) {}^{2} + 2 \times \sqrt{5} \times \sqrt{2}=(5)2+(2)2+2×5×2

= 5 + 2 + 2 \sqrt{10}=5+2+210

= 7 + 2 \sqrt{10}=7+210

Step-by-step explanation:

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Answer 2

Answer:

30 + 2$\sqrt{5}$

explanation:

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