Question

What is \[f(-1)\] for \[f(x)=12x^{\frac{4}{3}}-6x^{\frac{1}{3}}\]?

Options

• \[6\]

• \[\frac{-9}{4}\]

• \[0\]

• \[18\]

Answer 1

Substituting \[x=-1\] gives \[12(-1)^{\frac{4}{3}}-6(-1)^{\frac{1}{3}}\]. This evaluates to \[18\].