Answer: f(-x) = x^4 -3x^2 +x^6
-f(x) = -x^4 +3x^2 - x^6
Step-by-step explanation:
at f(-x), place a negative sign inside the function of x itself:
f(-x)= (-x)^4 -3(-x)^2 +(-x)^6
because the powers are even, they cancel out.
Answer:
49
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