Question

2-
$2 - \sqrt{5is \: irrational \: number}$
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Answer 1

Answer:

Step-by-step explanation:

2-√5 is it a irrational number

2-√5 irrational because √5 is irrational. The only way you can add or subtract a number to √5 to make the result rational, is by keeping the number irrational. For example, you can add the result of 2-√5 to √5 (2-√5 +√5) to produce a rational result, 2.

Hope it helps you.