Evaluate g(1+h)=x^3

$g (1 + h) = x^{3}$

Divide each term in $g (1 + h) = x^{3}$ by $1 + h$ .

$\frac{g (1 + h)}{1 + h} = \frac{x^{3}}{1 + h}$

Simplify the left side.

Cancel the common factor of $1 + h$ .

Cancel the common factor.

$\frac{g (1 + h)}{1 + h} = \frac{x^{3}}{1 + h}$

Divide $g$ by $1$ .

$g = \frac{x^{3}}{1 + h}$