Respuesta :

ghanami
hello : 
3 + 2 × (4 – 1 × 2) = 3+2× (4-2) = 5+2 = 7
3 + 2 × (4 – 1 × 2)
=
3 + 2 × (4 – 2)
=
3 + 2 × (2)
=
3 + 4
=
7


You need to refer to PEMDAS