Question

(4+2√3)^2


please solve it step by step
no mischief otherwise reported​

Answer 1

(a+b)² = a² + 2ab + b²

= 4² + 2×4×2√3 + (2√3)²

= 16 + 16√3 + 12

= 28 +16√3

= 4 (7 + 4√3)

hope it helps you