Question

Expand using ideantity (2+√3) whole square

Answer 1

Answer: 7 + 4$\sqrt{3}$

Step-by-step explanation:

(2 + $\sqrt{3}$)²

= 2² + (√3)² + (2 × 2 × √3)                          

= 4 + 3 + (4 × √3)

= 7 + 4√3