Question

Efectuati:
a)-2 x [(-35):(-7)+24:(-6)] x (-5)=... (rezolvarea completa)
b)[(-2) x (6-8)-(16):(-4)] x (-7)-(-8)=... (rezolvarea completa).
Dau coroana!

Answer 1

a ) -2 x [ ( -35 ) : ( -7 ) + 24 : ( -6 ) ] x ( -5 ) =

= -2 x [ 5 - 4 ] x ( -5 )

= -2 x 1 x ( -5 )

= -2 x ( -5 )

= 10

b ) [ ( -2 ) x ( 6 - 8 ) - ( 16 ) : ( -4 ) ] x ( -7 ) - ( -8 ) =

= [ ( -2 ) x ( -2 ) + 4 ] x ( -7 ) - ( -8 )

= [ 4 + 4 ] x ( -7 ) + 8

= 8 x ( -7 ) + 8

= -56 + 8

= -48

Answer 2

-2•[(-35):(-7)+24:(-6)] •(-5)=
=-2•[5+(-4)] •(-5)=
=-2•(5-4)•(-5)=
=-2•1•(-5)=
=10

[(-2)•(6-8)-(16):(-4)] •(-7)-(-8)=
=[(-2)•(-2)-16:(-4)] •(-7)+8=
=[4-(-4)] •(-7)+8=
=(4+4)•(-7)+8=
=8•(-7)+8=
=-56+8=
=-48

Sper ca te-am ajutat!!