Which strategy is the most appropriate to solve : x^2 - 8x = 242 ?

a. completing the square
b. zero product property
c. square root property

The appropriate strategy is (A). Completing the square.

Step-by-step explanation:  The given quadratic equation is

Since the constant term is not equal to zero, so Zero product property is no appropriate to solve the equation.

From equation (i), we have

The left hand side of the above equation is not a perfect square, so the square root property is also not appropriate.

Completing the square strategy is appropriate to solve the equation (i).

The solution using this strategy is as follows:

In this way, we can solve the equation by Completing the square strategy.

Thus, (A) is the correct option.