Question

How do I know if a square root is irrational?

Answer 1

Hey Brainly user

Here is your answer

• First write the factors of the given number
• then choose the number as factors of squares and cubes

ex:

$\sqrt{4} = 2 \times 2 \\ = 2$

$\sqrt{8} = 2 \times 2 \times 2 \\ 2 \sqrt{2}$

so in this way we can write the number as rational and irrational number

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