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2023-06-28 20:34:42
b) 142 - [50- (\(2^3\)x 10 - \(2^3\)x 5)]
= 142 - [50- (8 x 10 - 8 x 5)]
= 142 - [50- (80 - 40)]
= 142 - [50- 40]
=142 - 10
= 132
2023-06-28 20:13:07
a) 27 x 75 + 25 x 27 - 150
= 27 x (75 + 25) - 150
= 27 x 1875 - 150
= 50625 - 150
= 50475