Find f(5x) .The function f is defined by f(x) = 2x ^ 2 - 4 .

Jon Steinmetz asked Dec 23, 2023

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Jon Steinmetz asked Dec 23, 2023

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19 votes

Solution:

Given:

To find f(5x), this means the value of f(x) when x = 5x

Hence,

$\begin{gathered} f(x)=2x^2-4 \\ f(5x)=2(5x)^2-4 \\ f(5x)=2(25x^2)-4 \\ f(5x)=50x^2-4 \end{gathered}$

Therefore,

Mohax answered Dec 27, 2023

by Mohax

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