Question

Sendo X=(-14+2) e Y=(-12).(+5) qual o valor:

a)X+Y=
b)X-Y=
c)X.Y=
d)X:Y=
e)Y:Y=

Answer 1

Olá!!!

Resolução!!!

x = ( - 14 + 2 ) e y = ( - 12 ) • ( + 5 )

a)

= x + y
= ( - 14 + 2 ) + ( - 12 ) • ( + 5 )
= ( - 12 ) + ( - 60 )
= - 12 - 60
= - 72

b)

= x - y
= ( - 14 + 2 ) - ( - 12 ) • ( + 5 )
= ( - 12 ) - ( - 60 )
= - 12 + 60
= + 48

c)

= x • y
= ( - 14 + 2 ) • ( - 12 ) • ( + 5 )
= ( - 12 ) • ( - 12 ) • ( + 5 )
= ( + 144 ) • ( + 5 )
= + 720

d)

= x : y
= ( - 14 + 2 ) : ( - 12 ) • ( + 5 )
= ( - 12 ) : ( - 60 )
= 12/60 : 12
= 1/5
= 0,2

e)

= y : y
= ( - 12 ) • ( + 5 ) : ( - 12 ) • ( + 5 )
= ( - 60 ) : ( - 60 )
= + 1

Espero ter ajudado!,