Question

Need help

1) -45
-----
-5
=___

2) All of the following expressions have the same value except _____.

(-2)(4)
(2)(-4)
-16 ÷ 2
-16 ÷ -2

3) -3 *2=

4) All of the following are equivalent except _____.

(-2) *4
-2 *4
(-2)(-2)(-2)(-2)
2 *4

Answer 1

`1)\\\\(-45)/(-5)=45:5=9`

`2)\\(-2)(4)=-8\\(2)(-4)+-8\\-16:2=-8\\-16:(-2)=8\\eq-8\\\\\text{All of the following expressions have the same value except}\ -16:-2.`

`3)\\-3^2=-3\cdot3=-9`

`(-2)^4=(-2)(-2)(-2)(-2)=16\\-2^4=-(2)(2)(2)(2)=-16\\eq16\\(-2)(-2)(-2)(-2)=16\\2^4=(2)(2)(2)(2)=16\\\\\text{All of the following are equivalent except}\ -2^4.`