Question

rationalize the denominator of

Answer 1

(3-√2)/(3+√2) × (3-√2)/(3-√2),

(3-√2)²/[(3)²-(√2)²],

(9+2-6√2)/(9-2),

(11-6√2)/7

Answer 2

Multiply both the numerator and denominator by
$\sqrt{3} - 2$
This will give you
${( \sqrt{3} + 2)}^{2} \div (9 - 2)$