Question

What will be the value of (√11+√7)×(√11+√7)?

Answer 1

$answer$

(√11+√7)×(√11+√7)

= (√11+√7)²

Using identity (a+b)² = a² + b² + 2ab

=${ \sqrt{11} }^{2} + { \sqrt{7 } }^{2} + 2 \times \sqrt{11 } \times \sqrt{7}$

= 11 + 7 + 2√77

= 18 + 2√77