Question

(5 + 2 root 3) (5 + 2 root 3)​

Answer 1

Answer:

$(5 + 2 \sqrt{3})(5 + 2 \sqrt{3})$

$= (5 + 2 \sqrt{3})^{2}$

Since, (a+b)² = a² + 2ab + b²

$(5)^{2} + 2 \times 5 \times 2 \sqrt{3} + (2 \sqrt{3})^{2}$

$25 + 20 \sqrt{3} + 12$

= $37 + 20 \sqrt{3}$