[tex]1)\\\\\dfrac{-45}{-5}=45:5=9[/tex]
[tex]2)\\(-2)(4)=-8\\(2)(-4)+-8\\-16:2=-8\\-16:(-2)=8\neq-8\\\\\text{All of the following expressions have the same value except}\ -16:-2.[/tex]
[tex]3)\\-3^2=-3\cdot3=-9[/tex]
[tex](-2)^4=(-2)(-2)(-2)(-2)=16\\-2^4=-(2)(2)(2)(2)=-16\neq16\\(-2)(-2)(-2)(-2)=16\\2^4=(2)(2)(2)(2)=16\\\\\text{All of the following are equivalent except}\ -2^4.[/tex]
