a x b - c = ?
a = 50 + 9 : 9 - 45
a = 50 + 1 - 45
a = 51 - 45
a = 6
b = 3 x ( 300 - 55 x 5 ) x 2 + 3 - ( 14 : 7 - 5 x 0 )
b = 3 x ( 300 - 275 ) x 2 + 3 - ( 2 - 0)
b = 3 x 25 x 2 + 3 - 2
b = 75 x 2 + 3 - 2
b = 150 + 3 x 2
b = 150 + 6
b = 156
produsul: a x b = 6 x 156 = 936