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Simplify f(-4)=2(3)^-4

User Luca Putzu
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1 Answer

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remember pemdas, order of oepratons
also

x^(-m)=(1)/(x^m)

so

2(3)^-4 is 2 times 3^-4 so exponents first

3^(-4)=(1)/(3^4)=(1)/(81)
now we got
2 times 1/81=2/81

so
f(-4)=(2)/(81)
User Tamerlaha
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