F(x) = 2x³ - 7 x .Tentukan f(1) dan f (1/2)

F(x) = 2x³ – 7 x .Tentukan f(1) dan f (1/2)

${ green{boxed{boxed{star:tt{Answer+Explain}:star}}}} \ f(x) = 2 {x}^{3} - 7x \ f(1) = 2. {1}^{3} - 7.1 \ f(1) = 2 - 7 \ f(1) = - 5 \ \ f( frac{1}{2} ) = 2.( frac{1}{2} {)}^{3} - 7. frac{1}{2} \ f( frac{1}{2} ) = 2. frac{1}{ 8 } - 7. frac{1}{2} \ f( frac{1}{2} )= frac{2}{8} - frac{7}{2} \ f( frac{1}{2} ) = frac{1}{4} - frac{14}{4} \ f( frac{1}{2} ) = - frac{13}{4} \ f( frac{1}{2} ) = - 3 frac{1}{4} \ f( frac{1}{2} ) = - 3.25$