Question 313197
{{{f(x)+g(x)=g(x)+f(x)}}},True by the commutative property of addition.
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{{{2x-5-x^2=x^2-2x+5}}} False, there is no commutative property of subtraction.
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{{{f(2)+f(3)=(2(2)-5)+(2(3)-5)=(4-5)+(6-5)=-1+1=0}}}
{{{f(5)=2(5)-5=5}}} So clearly, this is false. 
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{{{f(0)=2(0)-5=-5}}} It doesn't equal 0. False.