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

1 answer:

6 0

First of all, since all powers of x in this function are even, the entire function is even. Thus, using -x as input doesn't change the function. Thus, f(-x)=2x^2-4.

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To make "n" the subject of the formula, rearrange the formula so it begins with " n = "

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