$($a$)$

Simplify the expression.

$($X $+$ Y$)($X $+$ Z$)$

$($b$)$

Simplify the expression.

$($V $+$ X $+$ W$)($V $+$ X $+$ Y$)$

$($c$)$

Simplify the function using the Distributive Law.

F $=($V $+$ W $+$ X$)($V $+$ X $+$ Y$)($V $+$ Z$)$