Answer: -100/27
Step-by-step explanation:
[tex]x^3 - 4[/tex]=
[tex](\frac{2}{3} )^3 - 4[/tex]=
[tex](\frac{2^3}{3^3} ) - 4[/tex]=
[tex]\frac{8}{27} - 4[/tex]=
([tex]\frac{8}{27} - 4[/tex])*27/27= ==> multiply by 27 to get rid of denominator
(8-4*27)/27=
(8-108)/27=-100/27
