Question

simplify √4-5-3√20+4√5​

Answer 1

Answer:

The answer is $\sqrt 5$

Step-by-step explanation:

First step : √45 - 3√20 + 4√5

Second: 3√5 -3*2√5 +4√5  

Third: 3√5-6√5+4√5

Fourth: (3-6+4)√5  

Fifth: (-3+4)√5

Answer= √5

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Answer 2

Answer:

Step-by-step

1/root 5  is the correct answer