Question

Write the simplest rationalizing factor of √18.

Answer 1

Answer:

yes this answer is ✅ right

Answer 2

The simplest rationalising factor of √18 is √2.

Given: √18

To find: Simplest rationalising factor of √18

Solution:

We know that

Rationalising factor is an expression that is multiplied by an irrational expression to obtain a rational expression.

Let x be the rationalising factor of √18

⇒ x√18 = a rational number

⇒ x = √2 or 2√2 or 3√2... [integral multiples of √2]

⇒ Simplest rationalising factor of √18 = √2

Answer= √2

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