Question

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

Answer 1

√20 = √5.4

Answer 2

√4 = 2

Answer 3

^ ding ding ding

Answer 4

How does √20 = √5.4?

Answer 5

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

Answer 6

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

Answer 7

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

Answer 8

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

Answer 9

Would it be 2√10

Answer 10

exactly.

Answer 11

Thanks