waheguru
Quick Question: How does √20 = 2√5
Please Explain I am confused



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Kanwar245
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√20 = √5.4

Kanwar245
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√4 = 2

yoyointegrals
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^ ding ding ding

waheguru
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How does √20 = √5.4?

gabrielle12
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You can factor 20 out to equal 2*2*5. The square root of this is 2 times the square root of 5

waheguru
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Can you show me how this would work if say it was √30?

yoyointegrals
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30 factors to 5*2*3 so you cannot change the square root of it.

waheguru
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√40 does factor to 2*2*10 can you show how it work with this

waheguru
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Would it be 2√10

yoyointegrals
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exactly.

waheguru
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Thanks