di)

To solve the equation , you can start by isolating . Divide both sides by 9:

Now, take the square root of both sides:

Thus, the solutions are and .

If you’re ever faced with similar quadratic equations, remember to set the equation equal to zero when possible, as it can make solving for much simpler. Also, don’t forget to check your solutions back in the original equation to ensure they satisfy it. Mistakes can sometimes happen easily in terms of sign or simplifying fractions!