Is $5^2x^3-x^5 = x^3(x-5)(x+5)$ or $-x^3(5-x)(5+x)$ Geogebra's Factor function says that 
$5^2x^3-x^5$ 
is 
$-x^3(x-5)(x+5)$ 
but from what I do, it is positive, $x^3(5+x)(5-x)$
Note the x isnt in the same position
Am I wrong?

Your answer and Geogebra's answers are equivalent.
$x^3(5+x)(5-x)=-x^3(5+x)(x-5)=-x^3(x+5)(x-5)$.
They just factored out a negative out of $(5-x)$ in order to make it $-(x-5)$.
