Answer :
Answer:
[tex]f=\frac{2}{3},-\frac{2}{3}[/tex]
Step-by-step explanation:
[tex]27f^{2}-66=-54\\27f^{2}=12\\f^{2}=\frac{12}{27}=\frac{4}{9}\\f=\sqrt{\frac{4}{9}}[/tex]
Answer:
[tex]f=\frac{2}{3},-\frac{2}{3}[/tex]
Step-by-step explanation:
[tex]27f^{2}-66=-54\\27f^{2}=12\\f^{2}=\frac{12}{27}=\frac{4}{9}\\f=\sqrt{\frac{4}{9}}[/tex]
