Question

Can u pls answer 14th answer step by step

Answer 1

Answer:

Answer is in attachment

Answer 2

Answer:

14. (i) 10 + 5√5+2√7+√35

(ii) 4

Step-by-step explanation:

14. (i) (5 + √7) (2 + √5)

5 (2 + √5) + √7 (2 + √5)

10 + 5√5 + 2√7 + √35. Ans.

(ii) (√11 + √7) (√11 - √7)

Here, we know the formula of (a²-b²)

a²-b²=(a+b) (a-b)

So, we can see this formula in this ques.

= (√11)² - (√7)²

= 11 - 7

= 4. Ans.