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a) 8/2=4
4 x 4 = 16
50 - 1 = 49
16 x 49 = 784
b) (8/2)x4x(50-1)=784
c)9 x 8 = 72
72 x 4 = 288
288 - 3 = 285
285 x 2 = 570
570 - 1 = 569
{[(9 x 8 x 4 )- 3 ]x 2 } - 1 = 569
4 x 4 = 16
50 - 1 = 49
16 x 49 = 784
b) (8/2)x4x(50-1)=784
c)9 x 8 = 72
72 x 4 = 288
288 - 3 = 285
285 x 2 = 570
570 - 1 = 569
{[(9 x 8 x 4 )- 3 ]x 2 } - 1 = 569