$f'\left( x \right) = 3{\left( {x + 2} \right)^2}$ và $f\left( 0 \right) = 8$

$f'\left( x \right) = \root 3 \of x  + {x^3} + 1$ và $f\left( 1 \right) = 2$

$f'\left( x \right) = \left( {x + 1} \right)\left( {x - 1} \right) + 1$ và $f\left( 0 \right) = 1$

$f'\left( x \right) = 4{x^3} - 3{x^2} + 2$ và $f\left( { - 1} \right) = 3$