Question

calcule o valor das expressões. f) 40: (-1 sobre 5) + (-2 sobre 3 ) -12

Answer 1

40 : (-1)^5 + (-2)^3 - 12=

40 : (-1) + (-8) -12=

-40 -20=

-60

Answer 2

$\frac{40}{-1^{5} } +(-2 ^{3}) -12$
$-1^{5}$=-1*-1*-1*-1*-1=1*1*-1=1*-1=-1
$-2^{3}$=-2*-2*-2=4*-2=-8
$\frac{40}{-1} +(-8)-12$
-40-8-12
-40-2
-60