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A function is defined as f(x)=x^2-3x+4. What expression can be used to describe f(2x)? Express your answer in simplified form in terms of x.

 Aug 11, 2022
 #1
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plug in 2x for every x in f(x) = x^2-3x+4

 

That leaves us with f(2x) = (2x)^2 -3(2x) + 4 = 4x^2 - 6x + 4

 Aug 12, 2022

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