Question

5) Qual o valor da expressão ( -4 )² : ( -2 ) + 9 . ( 5 - 6 ) *

5 pontos

a) -17

b) + 17

c) +13

d) - 1​

Answer 1

Resposta:

Item A

$( - 4)^{2} \div ( - 2) + 9 \times (5 - 6) \\ 16 \div ( - 2) + 45 - 54 \\ - 8 + 45 - 54 \\ - 8 - 9 = - 17$

Answer 2

꧁Hello, how are you?꧂

Bom... vamos lá, baby!

$(- 4) {}^{2} \div ( - 2) + 9 \times (5 - 6) \\ 4 {}^{2} \div ( - 2) + 9(5 - 6) \\ 4 {}^{2} \div ( - 2) + 9 \times ( - 1) \\ - 4 {}^{2} \div 2 + 9 \times ( - 1) \\ - 2 {}^{4} \div 2 + 9 \times ( - 1) \\ - 2 {}^{4} \div 2 - 9 \\ - 2 {}^{3} - 9 \\ - 8 - 9 \\ - (8 + 9) \\ - 17$

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Signed: Lohany Queen of hell 彡★

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