1. The problem is to evaluate the expression $4 + (-2) \times (-8)$.\n\n2. According to the order of operations (PEMDAS/BODMAS), multiplication is performed before addition.\n\n3. First, calculate the multiplication part: $(-2) \times (-8)$.\n\n4. Multiplying two negative numbers results in a positive number, so $(-2) \times (-8) = 16$.\n\n5. Now substitute back into the expression: $4 + 16$.\n\n6. Finally, add the numbers: $4 + 16 = 20$.\n\nTherefore, the value of the expression is $20$.