Question

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

Answer 1

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)`