Question

how to solve (3-√5)^2

Answer 1

Heya!!

Here's ur answer...


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$(3 - \sqrt{5} {)}^{2} \\ = (3 {)}^{2} + ( \sqrt{5} {)}^{2} - 2 \times 3 \times \sqrt{5} \\ = 9 + 5 - 6 \sqrt{5} \\ = 14 - 6 \sqrt{5}$


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Hope it may help you...



Thank you ☺️ ☺️

Answer 2

By formula (a-b)²

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Let 3 as "a" and √5 as "b"

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(3-√5)²

3²+{√5}²-2(3√5)

9 +5 -6√5

14-6√5

2(7-3√5)

I hope this will help you

-by ABHAY