Question

(4+raiz de 2).(4-raiz de 2)
(3+raiz de 3).(3-raiz de 3)

Answer 1

(4+√2).(4-√2).(3+√3).(3-√3)
(4+1.41).(4-1.41).(3+1.73).(3-1.73)
≈84.17