Question

[Trần Hạ Linh]

A=( 28 . 4⁷ - 4⁸ ) : 64 

B=49 . (-113) + 94 . 37 - 147

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                 7³ . (-9)

Answer 1

[Nobi Nobita]

A=(28.4⁷-4⁸):64

A=[2².7.(2²)⁷-(2²)⁸]:64

A=[2².7.2¹⁴-2¹⁶]:64

A=[2¹⁶.7-2¹⁶.1]:64

A=(2¹⁶.6):64

A=(2⁶.2¹⁰.6):64

A=2¹⁰.6=6144

B=\(\frac{49.\left(-113\right)+94.37-147}{7^3.\left(-9\right)}\)

B=\(\frac{49.\left(-113\right)+94.37-49.3}{7^2.7.\left(-9\right)}\)

B=\(\frac{49.\left[\left(-113\right)-3\right]+3478}{749.\left(-63\right)}\)

B=\(\frac{49.\left[-116\right]+3478}{49.\left(-63\right)}\)

B=\(\frac{2206}{3078}\)

Answer 2

[Trần Hạ Linh]

Cảm ơn bạn !!!