Question 1107500
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Let function f {{{highlight(cross(square))}}} <U>squares</U> the input x and then {{{highlight(cross(subtract))}}} <U>subtracts</U> 5 to obtain the output y. 
Write a formula or symbolic representation for f
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<pre>
f(x) = {{{x^2 -5}}}.


y = {{{x^2 -5}}}.
</pre>