Question

Write the rationalizing factor of 1

√7− √4

explain full by method​

Answer 1

Answer:

$\sqrt{7} - \sqrt{4} \div 1 \times \sqrt{7} + \sqrt{4} \div \sqrt{7} + \sqrt{4} = ( \sqrt{7} ) { }^{2} - ( \sqrt{4}) {}^{2} \div \sqrt{7} + \sqrt{4} \\ = 7 - 4 \div \sqrt{7} + \sqrt{4} = 3 \div \sqrt{7} + \sqrt{4}$