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waheguru

  • one year ago

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

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  1. Kanwar245
    • one year ago
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    √20 = √5.4

  2. Kanwar245
    • one year ago
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    √4 = 2

  3. yoyointegrals
    • one year ago
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    ^ ding ding ding

  4. waheguru
    • one year ago
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    How does √20 = √5.4?

  5. gabrielle12
    • one year ago
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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

  6. waheguru
    • one year ago
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    Can you show me how this would work if say it was √30?

  7. yoyointegrals
    • one year ago
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    30 factors to 5*2*3 so you cannot change the square root of it.

  8. waheguru
    • one year ago
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    √40 does factor to 2*2*10 can you show how it work with this

  9. waheguru
    • one year ago
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    Would it be 2√10

  10. yoyointegrals
    • one year ago
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    exactly.

  11. waheguru
    • one year ago
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    Thanks

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