\(f\left(-3\right)=-2\cdot\left(-3\right)^3+3\cdot\left(-3\right)-2022\)
\(=-2\cdot\left(-27\right)-9-2022\)
=54-9-2022
=45-2022
=-1977
\(f\left(\dfrac{1}{3}\right)=-2\cdot\left(\dfrac{1}{3}\right)^3+3\cdot\dfrac{1}{3}-2022\)
\(=-\dfrac{2}{27}+1-2022\)
\(=-\dfrac{2}{27}-2021=-\dfrac{54569}{27}\)









giúp mình với ạ,mình xin cảm ơn trước