Question

$(-2)+(-3).(-2)^{-1} :(-3)^{1}$

Answer 1

Resposta:

-5/2.

Explicação passo-a-passo:

(-2)+(-3)×(-2)-¹:(-3)¹

-2+(-3)×(-2)-¹ - (-3)

-2+1×(-2-¹)

-2+-2-¹

-2-1/2

R:-5/2

Answer 2

Explicação passo-a-passo:

$( - 2) + ( - 3) \times ( - 2)^{ - 1} \div ( - 3)^{1} = ( - 2) + ( - 3) \times ( - \frac{1}{2} ) \div ( - 3) = ( - 2) + \frac{3}{2} \div( - 3 ) = ( - 2) + \frac{3}{2} \times (-\frac{1}{3}) = ( - 2) + (-\frac{1}{2}) = (-2)- \frac{1}{2} = \frac{2\times(-2) - 1}{2} = \frac{-4 - 1}{2}=\frac{-5}{2}$