evaluate the expression $x^{3}+x^{2}$ for $x = 4$.

Explanation:

Step1: Calculate $x^3$ when $x = 4$

$4^3=4\times4\times4 = 64$

Step2: Calculate $x^2$ when $x = 4$

$4^2=4\times4=16$

Step3: Add the two results

$64 + 16=80$

Answer:

80