Question

7\√12-√5 rationalize the denominator​

Answer 1

Answer:

7/√12-√5

7(√12+√5)/(√12)²-(√5)²

7(√12+√5)/7

(√12+√5)

Answer 2

7/√12-√5 × √12+√5/√12+√5

now a-b and a+b = (a²-b²)

so multiple 7 and √12 + √5 and in denominator

apply the rule (a²-b²)

therefore , 7(√12+√5)/(√12² - √5²)

7(√12+√5)/12-5

7(√12+√5)/7

now 7 is divided by 7 so,

√12+√5/1

hope it's helpful