Question

15. Simplify each of the following expressions:
(i) (4 + 2/3) (7 +312) (ii) (7 + 3) (7-13
(iii) (275+77) ?​

Answer 1

Answer:Given : (i) (4 + √7) (3 + √2)

= 3(4 + √7) +√2 (4 + √7)

= 12 + 3√7 + 4√2 + √14

(ii) (3 + √3) (5 - √2)

3(5 -√2) + √3(5 - √2)

⇒ 3 × 5 - 3√2 + 5√3 -  √3 ×√2

⇒ 15 - 3√2 + 5√3 - √6

(iii) Given : (√5 - 2) (√3 - √5)

⇒   √3(√5 - 2) -√5(√5 - 2)

⇒ √5 × √3 - 2√3 - √5 × √5 + 2√5

⇒ √15 - 2√3 - 5 + 2√5

HOPE THIS ANSWER WILL HELP YOU…..

Step-by-step explanation: