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14-09-2020
Mathematics

contestada

What is the value of the expression when n = 3?
- 2n(5 + n-8-3n)

Respuesta :

Аноним Аноним

15-09-2020

Answer:

54

Step-by-step explanation:

- 2n(5 + n - 8 - 3n) =

replace n = 3

- 2(3)(5 + 3 - 8 - 3×3)

= - 6(8 - 8 - 9)

= - 6(0 - 9)

= - 6 × - 9

= 54

(-)(-) = +

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