#How to solve this step by step ? Like not just with calculator.

6 messages · Page 1 of 1 (latest)

white atlasBOT
rigid wind
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first part requires a rlly interesting technique where u can simplify root(9-4root(5)):

  • split root(9-4root5) into root(4-4root(5) +5)

  • with careful thinking you can spot this in the same thing as root( (2-root(5))^2)

  • square root and square cancel to give u 2-root(5)

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next part, if the inside of the modulus is less than 0 multiply it by -1 to give 2root5- 3

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then just gather like terms

main sage
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Thx

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