Question

ae agora só tem essas duas a e e a f

Answer 1

a)
= 2² + √81: 9
= 4 + 9: 9
= 4 + 1
= 5
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b)
= 2³ + √100 : 5 - 3²
= 8 + 10:5 - 9
= 8 + 2 - 9
= 10 - 9
= 1
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c)

= 2.(√1.5 - √16)
= 2.(1.5 - 4)
= 2.(5 - 4)
= 2.1
= 2
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d)

= 8² : (6.2 - √100)
= 64: (12 - 10)
= 64: 2
= 32
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e)

12 . [ 9² - (√64 + 7.10)]
12 . [ 81 - ( 8 + 70)]
12 . [ 81 - (78)]
12. [ 81 - 78]
12 . 3
= 36
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f)

= 2³ : 4 + 3 . [ √25 - (3 - 2)] - 7

= 8 : 4 + 3 . [ 5 - (1)] - 7

= 2 + 3. [ 5 - 1] - 7

= 2 + 3.4 - 7

= 2 + 12 - 7

= 14 - 7

= 7