Question

Efectuați a) si b) :​

Answer 1

Răspuns:

a)

[|9-27|+3-2×2]:(-43)=(18+3-4):(-43)=

$- \frac{17}{43}$

b)

{-2×[-8+5]:2+4}×(-2)+14=[-2×(-3):2+4]×(-2)+14=7×(-2)+14=-14+14=0