Simple....
you have: \(-(5- x)^{2}\)
(The negative you have in front of this is either not supposed to be here or it's trying to trick you..)
\(-(5- x)^{2}\)
Substitute the (-) into the equation-->>>
\((-5+ x)^{2}\)
or
\((x-5)^{2}\)
And then this turns into a very understandable math problem-->>
xx= \(x^{2}\)
-5x= -5x
-5x= -5x
-5-5= 25
Now we add it all up-->>>
\(x^{2}\)-10x+25
Thus, your answer.
