Question

Which expression has a positive value?

-4+(-5)(-6) / by (-3)
8 [ 10 / by(2)(-2) ]
3(-64 / by 8) + 25
-2(-5)(-3) / by 10

Answer 1

3(-64/8)+25 will give you a positive value of 1

Answer 2

3rd expression has a positive value.

Explanation:

(1) -4 + (-5)
`[((-6))/((-3))]`

= -4 + (-5) × 2

= -4 -10

= -10

(2) 8
`[(10)/(2(-2))]`

=
`(80)/((-4))` = -20

(3) 3
`[(-64)/(8)]+25`

= 3(-8) + 25

= -24 + 25

= 1 [positive value]

(4)
`((-2)(-5)(-3))/(10)`

`=(+10(-3))/(10)`

= -3

3rd expression has a positive value.