Respuesta :

rokettojanpu
The function f(x) is even if:
f(-x) = f(x)

f(x) is odd if:
f(-x) = -f(x)

Plug in -x into f(x):
f(-x) = 5(-x)^2 - 2
f(-x) = 5x^2 - 2

We got back our original f(x) by plugging in -x, so f(-x) = f(x), and therefore the function is even.

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