Math, asked by sushmanand, 6 months ago

The simplest rationalizing factor of √20- √45 is

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Answered by gpvvsainadh

Step-by-step explanation:

$\sqrt{20} - \sqrt{45} \\ = \sqrt{ {2}^{2} \times 5 } - \sqrt{ {3}^{2} \times 5 } \\ = 2 \sqrt{5} - 3 \sqrt{5} \\ = - 1 \sqrt{5} \\ rationalising \: factor \: is \: \sqrt{5}$

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The simplest rationalizing factor of √20- √45 is​

Answers

The simplest rationalizing factor of √20- √45 is