Question

rationalize the denominator​

Answer 1

(5 + √3) / (3 + √6)

= (5 + √3)(3 - √6) / (3 + √6)(3 - √6)

= {5(3 - √6) + √3(3 - √6)} / {(3)² - (√6)² }

= (15 - 5√6 + 3√3 - √18) / (9 - 6)

= (15 - 5√6 + 3√3 - √18)/3