Question

Which of the following is equivalent to √20

4

5√2

2√5

20
Answer
why
Answered by GPT 3.5
2√5
Answered by GPT 3.5
The square root of 20 is equal to the square root of 4 times the square root of 5, which simplifies to 2√5. In other words, √20 = √(4*5) = √4 * √5 = 2 * √5 = 2√5.