Question

Kto dla mnie zrobi te zadanie? plssss
a) -3 + (-7) × 4 =
b) -5 × (-2) - (-8) × 2=
c) 7 × (-8) + (-5) do potęgi 2 =
d) {-6 × 3 + (-5) × (-4)} × (-9) =

Answer 1

a)

[tex] - 3 + ( - 7) \times 4 = - 3 + ( - 28) = - 31[/tex]

b)

[tex] - 5 \times ( - 2) - ( - 8) \times 2 = 10 - ( - 16) = 10 + 16 = 26[/tex]

c)

[tex]7 \times ( - 8) + ( - 5 {)}^{2} = - 56 + 25 = - 31[/tex]

d)

[tex]( - 6 \times 3 + ( - 5) \times ( - 4)) \times ( - 9) = ( - 18 + 20) \times ( - 9) = 2 \times ( - 9) = - 18[/tex]

Answer 2

Odpowiedź:

a)

- 3 + ( - 7) * 4 = - 3 + (- 28) = - 3 - 28 = - 31

b)

- 5 * (- 2) - (- 8) * 2 = 10 - ( - 16) = 10 + 16 = 26

c)

7 * ( - 8) + (- 5)² = - 56 + 25 = - 31

d)

{- 6 * 3 + (- 5) * (- 4)} * (- 9) = {- 18 + 20} * (- 9) = 2 * (- 9) = - 18