Let , where is a real parameter. Evaluate and simplify your…

MATHEMATICS · Single correct · AoPS · Mathematics · More Variables · More Variables

Problem

Let

s(x)=x^{4}-4tx+t^{2}

, where

t

is a real parameter. Evaluate

s(2t)

and simplify your answer. (a)

16t^{4}+7t^{2}

(b)

8t^{4}-7t^{2}

(c)

16t^{4}-7t^{2}

(d)

16t^{4}-8t^{2}