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30 January, 11:21

Qual o resultado da expressão numérica a seguir?

5² - √8+56:2

A) 4

B) 7

C) 19

D) 26

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Answers (1)
  1. 30 January, 13:12
    0
    The answer is 19.

    Step-by-step explanation:

    We first need to calculate the powers, roots, products and divisions in the order they appear from left to right. For this expression we have:

    5² - sqrt (8 + 56:2)

    25 - sqrt (8 + 56:2)

    25 - sqrt (8 + 28)

    25 - sqrt (36)

    25 - 6

    Now we can calculate the sums and subtractions in the order they appear, from left to right:

    25 - 6

    19

    The answer is 19
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