Final answer:
To convert the equation x² + y² - 16x + 8y = 0 from standard form to general form, rearrange the terms to have all the variables on the left side and a constant on the right side of the equation.
Step-by-step explanation:
To convert the equation x² + y² - 16x + 8y = 0 from standard form to general form, you need to rearrange the terms to have all the variables on the left side and a constant on the right side of the equation. So the correct option is (c) x² + y² - 16x - 8y = 0.